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Doors Open Ontario presenting sponsor
Doors Open Ontario presenting sponsor

Chiefswood National Historic Site Doors Open Along the Grand

Chiefswood National Historic Site

Chiefswood was given by Mohawk Chief George Johnson as a wedding present for his English bride Emily Howells. It was also the birthplace and childhood home of famous Mohawk poetess E. Pauline Johnson, who travelled throughout Canada celebrating her Mohawk heritage. Chiefswood offers a glimpse at the lives of the Johnson family, and life on Six Nations in the mid-1800s.

  • Guided tours available
  • Kid-friendly
  • Parking
  • Partial wheelchair access
  • Self-guided tours available
  • Site has blue and gold provincial plaque
  • Washrooms
  • Photography allowed

Contact info

1037 Highway 54
Ohsweken, Ontario
Email: SNTMPC@Sixnations.ca
https://chiefswoodnhs.ca

Architecture

Year built: 1853
Building type: Historical house
Architect: Chief George Johnson

Dates/hours open

May 09, 10:00am - May 09, 04:00pm

Christ Church Cathedral Ottawa Doors Open Ottawa

Christ Church Cathedral Ottawa

Built in 1872, this church was constructed to harmonize with the new Parliament buildings. Named the Cathedral of the Diocese in 1897, it continues to nurture faith in creative and traditional ways. Architectural features include soaring ceilings, magnificent windows and the bell tower, home to the 516-pound bronze bell cast for the original church in 1839.

  • Full wheelchair access
  • Guided tours available
  • Washrooms
  • Photography allowed

Contact info

414 Sparks Street
Ottawa, Ontario
https://www.ottawacathedral.ca

Architecture

Year built: 1872
Building type: Historical landmark Place of worship
Architect: King Arnoldi

Dates/hours open

Jun 06, 10:00am - Jun 07, 04:00pm

Church of St. Bartholomew Doors Open Ottawa

Church of St. Bartholomew

St. Bartholomew’s Anglican Church was built of local limestone. It remains an active place of worship and a concert venue today, with a history that’s closely intertwined with that of the local community, the city of Ottawa and the nation. Artifacts and windows remind us of those connections — particularly the stained-glass window behind the altar and the magnificent Létourneau organ.

  • Site is protected by the Ontario Heritage Trust

Contact info

125 MacKay Street
Ottawa, Ontario

Architecture

Year built: 1867
Building type: Historical landmark Place of worship
Architect: Thomas Seaton Scott

Dates/hours open

Jun 06, 10:00am - Jun 06, 04:00pm

Church of the Holy Trinity Doors Open Toronto

Church of the Holy Trinity

This is one of Toronto’s oldest Anglican churches. Built to serve Irish immigrants, it has a long history of helping people on the margins of society. Following a 1977 fire, parishioners created a striking new ceiling and installed contemporary stained-glass windows on the south wall. The Toronto Homeless Memorial and a public labyrinth can be found outside on Trinity Square.

  • Partial wheelchair access
  • Self-guided tours available
  • Washrooms
  • Photography allowed

Contact info

19 Trinity Square
Toronto, Ontario
https://holytrinity.to

Architecture

Year built: 1847
Building type: Place of worship
Architect: Henry Bower Lane

Dates/hours open

May 24, 10:00am - May 24, 05:00pm

Church of the Messiah Doors Open Toronto

New

Church of the Messiah

This church features rough grey limestone and a massive battlemented tower. Today, in addition to regular worship services, it serves as a neighbourhood hub — hosting the Avenue Road Food Bank, meetings, community celebrations and musical performances. Not usually open to the public, the church invites visitors to explore its rich history and contemporary use through tours and special events/activities.

  • Full wheelchair access
  • Guided tours available
  • Kid-friendly
  • Partial wheelchair access
  • Self-guided tours available
  • Washrooms
  • Photography allowed

Contact info

240 Avenue Road
Toronto, Ontario

Architecture

Year built: 1890; redesigned after 1976 fire
Building type: Place of worship
Architect: Gordon & Helliwell

Dates/hours open

May 23, 10:00am - May 24, 05:00pm

CIGI Campus (Centre for International Governance Innovation) Doors Open Waterloo Region

CIGI Campus (Centre for International Governance Innovation)

The Centre for International Governance Innovation (CIGI) is celebrating its silver jubilee in 2026, marking 25 years of governance innovation and global impact. Explore the CIGI campus (awarded a Governor General’s Medal in Architecture), watch engaging presentations and learn how our work has contributed to bettering global policy making and improving people’s lives around the world.

  • Full wheelchair access
  • Kid-friendly
  • Parking
  • Self-guided tours available
  • Washrooms
  • Photography allowed
  • Rental opportunities

Contact info

67 Erb Street West
Waterloo, Ontario
Email: rsvp@cigionline.org
https://www.cigionline.org

Architecture

Year built: 2011

Architect: Kuwabara Payne McKenna Blumberg Architects (KPMB)

Dates/hours open

Sep 19, 10:00am - Sep 19, 04:00pm

Circling Hawk Honey & Mead Doors Open Richmond Hill

Circling Hawk Honey & Mead

Circling Hawk Honey & Mead is the only commercial meadery in Richmond Hill. Built and operated as an equestrian farm until 2010, the site was converted to mostly agriculture as a secondary use. Learn about sustainable farming practices on a tour of the winery, bee yard, fruit orchards, horse stable, and extraction facilities while enjoying live entertainment.

    • Adaptive reuse
    • Food vendors
    • Guided tours available
    • Kid-friendly
    • Parking
    • Partial wheelchair access
    • Washrooms
    • Photography allowed
    • Rental opportunities

    Contact info

    13433 Leslie Street
    Richmond Hill, Ontario
    Email: heritageservices@richmondhill.ca
    https://www.circlinghawkfarm.com

    Architecture

    Year built: 1956
    Building type: Commercial Food and drink Farm

    Dates/hours open

    May 09, 10:00am - May 09, 04:00pm

    City of Toronto Archives Doors Open Toronto

    City of Toronto Archives

    Opened in 1992, the City of Toronto Archives building was designed to be a safe, secure and efficient archives space, as well as an inviting research facility. The Records Centre houses 130,000 boxes of records. It also features a public research hall (used by researchers from around the world), conservation and digitization labs and changing exhibitions highlighting Toronto's rich history.

    • Full wheelchair access
    • Parking
    • Self-guided tours available
    • Washrooms
    • Photography allowed

    Architecture

    Year built: 1992
    Building type: Archives
    Architect: Zeidler Roberts Partnership

    Dates/hours open

    May 23, 10:00am - May 23, 05:00pm

    CKCU 93.1 FM Doors Open Ottawa

    CKCU 93.1 FM

    In 1975, CKCU became the first campus-based community radio station in Canada. It continues to be a pioneer in community broadcasting, serving as a voice for many Ottawa identities and communities not served by the mainstream media. Offering over 100 programs in over 10 languages, CKCU is committed to diversity. Come witness live radio in the making!

    • Full wheelchair access
    • Guided tours available
    • Kid-friendly
    • Parking

    Contact info

    1125 Colonel By Drive (in the Nideyinàn building, Carleton University campus)
    Ottawa, Ontario
    https://www.ckcufm.com

    Architecture

    Building type: Educational facility

    Dates/hours open

    Jun 06, 10:00am - Jun 06, 04:00pm

    Clark Centre for the Arts Doors Open Toronto

    Clark Centre for the Arts

    This is a stunning cultural facility located in Guild Park and Gardens. It features five art studios and a corridor gallery on each level. Built around an existing designated heritage building, a third floor was added to transform a former office and storage facility into a distinctive cultural landmark. Today, the Centre offers diverse and accessible arts and culture programs.

    • Adaptive reuse
    • Full wheelchair access
    • Guided tours available
    • Parking
    • Site is protected by the Ontario Heritage Trust
    • Washrooms
    • Photography allowed

    Architecture

    Year built: 2021
    Building type: Gallery
    Architect: Taylor Hazell Architects Ltd.

    Dates/hours open

    May 23, 10:00am - May 24, 05:00pm

    Clergue Blockhouse Doors Open Sault Ste. Marie

    Clergue Blockhouse

    The Clergue Blockhouse stands as a reminder of two important periods in Sault Ste. Marie's history. The blockhouse base contains exhibits and information on the fur trade (the base was originally the powder magazine). The top floor exhibit showcases the early industrialization of Sault Ste. Marie and the man behind it — Francis H. Clergue. Clergue lived on the top floor.

    • Guided tours available
    • Kid-friendly
    • National Historic Site (Canada)
    • Parking
    • Partial wheelchair access
    • Self-guided tours available
    • Washrooms
    • Photography allowed
    • Veterans/Military heritage

    Contact info

    800 Bay Street
    Sault Ste. Marie, Ontario
    Email: old.stone.house@cityssm.on.ca
    https://ecnhs.com

    Architecture

    Year built: 1819
    Building type: Historical landmark Museum

    Dates/hours open

    Sep 26, 10:00am - Sep 26, 04:00pm

    Club Carib of Oshawa Inc. Doors Open Oshawa

    Club Carib of Oshawa Inc.

    Club Carib, founded in January 1966, houses the Hummingbird Dancers and Oshawa Sounds of Steel. It also serves as a community banquet hall for weddings and conferences. During Doors Open, enjoy a 30-minute steel pan performance. The Caribbean Café will also offer food and refreshments (while supplies last). You can also try your hand at playing the steel pan!

    • Food vendors
    • Full wheelchair access
    • Parking
    • Washrooms
    • Photography allowed
    • Rental opportunities

    Contact info

    600 Wentworth Street East
    Oshawa, Ontario
    https://clubcaribofoshawainc.weebly.com

    Architecture

    Year built: 1993

    Dates/hours open

    May 02, 10:00am - May 02, 04:00pm

    Coldwater Mill Doors Open Simcoe County

    Coldwater Mill

    This historic and picturesque 1833 grist mill is located on the Coldwater River. The site includes a free museum, a gift shop displaying the works of local artisans and a covered picnic area. Washrooms on site. Pet friendly. Barrier free. Free parking for Mill guests. 

    • Food vendors
    • Full wheelchair access
    • Guided tours available
    • Kid-friendly
    • Parking
    • Washrooms

    Contact info

    1 Mill Street
    Coldwater, Ontario
    Email: info@coldwatermill.com
    https://coldwatermill.com/

    Architecture

    Year built: 1833
    Building type: Historical landmark Museum
    Architect: Jacob Gill

    Dates/hours open

    Sep 19, 10:00am - Sep 19, 04:00pm

    Coldwater Museum Doors Open Simcoe County

    Coldwater Museum

    The Coldwater Museum is a living museum, located on a beautiful 2.6-hectare (6.5-acre) historical site with the aptly named Coldwater River running through the property. It is a truly fun, community-run museum that celebrates the heritage of the original Woodrow Homestead, a beautifully preserved log cabin built in the early 1840s on a former stagecoach route.

    • Guided tours available
    • Kid-friendly
    • Parking
    • Partial wheelchair access
    • Self-guided tours available
    • Site is protected by the Ontario Heritage Trust
    • Washrooms
    • Photography allowed

    Contact info

    1474 Woodrow Road
    Coldwater, Ontario
    Email: rpturnour@gmail.com
    https://www.coldwatermuseum.com

    Architecture

    Year built: 1840
    Building type: Historical landmark Historical house Museum

    Dates/hours open

    Sep 19, 10:00am - Sep 19, 04:00pm

    Collège Boréal Doors Open London

    New

    Collège Boréal

    Looking for a fun way to explore Doors Open London? Drop by Collège Boréal for our bilingual bingo! Whether you are a fluent Francophone, a French learner, or just love games, everyone is welcome. Play in French and English, explore our bright, modern, and accessible campus and have a chance to win some awesome Boréal prizes!

    • Full wheelchair access
    • Guided tours available
    • Kid-friendly
    • Parking
    • Washrooms
    • Photography allowed

    Contact info

    142 Fullarton Street
    London, Ontario
    Email: pierre.hauss@collegeboreal.ca
    https://collegeboreal.ca/emplacement/site-de-london/

    Architecture

    Building type: Commercial

    Dates/hours open

    Sep 19, 11:00am - Sep 19, 02:30pm

    Community Archives of Belleville and Hastings County Doors Open Belleville

    Community Archives of Belleville and Hastings County

    The Community Archives of Belleville and Hastings County opened in 2016. A collaborative project, it was built as a partnership between the City of Belleville, the County of Hastings and the Hastings County Historical Society. The archives preserve the history of the community through records of local governments, individuals, families, businesses and organizations.

    • Full wheelchair access
    • Guided tours available
    • Washrooms
    • Photography allowed

    Contact info

    254 Pinnacle Street
    Belleville, Ontario
    Email: archives@cabhc.ca
    https://www.cabhc.ca

    Architecture

    Year built: 2016
    Building type: Library
    Architect: Shoalts and Zaback

    Dates/hours open

    Sep 12, 10:00am - Sep 12, 04:00pm

    Community Waterfront Heritage Centre Doors Open Owen Sound

    Community Waterfront Heritage Centre

    The Marine Rail Heritage Centre, housed inside the Community Waterfront Heritage Centre, was established in 1978 by a volunteer group of enthusiasts to showcase Owen Sound’s history as a thriving port. Located inside the historical railway station, this museum preserves the area’s marine, rail and industrial history with artifacts, scale models, archival photos, interactive stations and railway memorabilia.

    • Adaptive reuse
    • Full wheelchair access
    • Guided tours available
    • Kid-friendly
    • Parking
    • Self-guided tours available
    • Washrooms
    • Photography allowed
    • Rental opportunities

    Contact info

    1155 1st Avenue West
    Owen Sound, Ontario
    Email: info@waterfrontheritage.ca
    https://waterfrontheritage.ca

    Architecture

    Year built: 1931
    Building type: Historical landmark Museum Transportation Gallery

    Dates/hours open

    Jul 18, 10:00am - Jul 18, 04:00pm

    Copperlight at Knox Presbyterian Church Doors Open Stratford

    New

    Copperlight at Knox Presbyterian Church

    Rebuilt following a devastating fire, Knox Presbyterian remains a cornerstone of Stratford's spiritual and cultural life. Its magnificent stained-glass windows, including a stunning seven-panel installation, have been recently restored. While the congregation continues to worship here, the building is also being prepared for Copperlight, a new hospitality and arts venue. Return for a special ticketed dinner/concert Saturday evening (pre-booking required).

    • Full wheelchair access
    • Guided tours available
    • Partial wheelchair access
    • Self-guided tours available
    • Site is protected by the Ontario Heritage Trust
    • Washrooms
    • Photography allowed
    • Rental opportunities

    Contact info

    142 Ontario Street
    Stratford, Ontario
    https://www.thebmigroup.ca/portfolio/copperlight

    Architecture

    Year built: 1871 (original); 1915 (rebuilt)
    Building type: Concert hall Historical landmark Place of worship
    Architect: Brydon & Greig, Toronto

    Dates/hours open

    Apr 18, 10:00am - Apr 19, 04:00pm

    Corby Park Rose Garden Doors Open Belleville

    Corby Park Rose Garden

    The Corby Park Rose Garden is in the old east village of Belleville, a great area for exploring heritage homes, just a few blocks from the Bay of Quinte. The garden has a stunning water fountain and, at the centre of it all, you get a beautiful view of the entire garden — perfect for a family outing or wedding.

    • Full wheelchair access
    • Photography allowed
    • Rental opportunities

    Contact info

    210 Ann Street
    Belleville, Ontario
    Email: tdeming@belleville.ca

    Architecture

    Building type: Attraction

    Dates/hours open

    Sep 12, 10:00am - Sep 12, 04:00pm

    Cornwall Armoury Doors Open Cornwall and SDG Counties

    Cornwall Armoury

    The Cornwall Armoury, home of the Stormont, Dundas and Glengarry Highlanders, is a historic military building completed in 1938. Designed in a Scottish Baronial style, it features a striking stone-and-brick façade concealing one of Canada’s largest drill halls. The armoury serves as a training centre, regimental headquarters and symbol of the region’s proud military heritage.

    • Full wheelchair access
    • Guided tours available
    • Kid-friendly
    • Parking
    • Self-guided tours available
    • Washrooms
    • Photography allowed
    • Veterans/Military heritage

    Architecture

    Year built: 1939
    Building type: Historical landmark Military Museum

    Dates/hours open

    Aug 15, 09:30am - Aug 16, 03:00pm

    Cornwall Community Museum (The Wood House) Doors Open Cornwall and SDG Counties

    Cornwall Community Museum (The Wood House)

    This museum collects, preserves and displays historical artifacts related to Cornwall and the United Counties of Stormont, Dundas and Glengarry. Their exhibit spaces host a multitude of artifacts organized by theme — the founding of New Johnstown and the Royal Townships, a turn-of-the-century kitchen, industry, law, commerce, textile, community service, health care and more. Come and explore this fascinating museum!

    • Adaptive reuse
    • Guided tours available
    • Kid-friendly
    • Parking
    • Partial wheelchair access
    • Self-guided tours available
    • Site is protected by the Ontario Heritage Trust
    • Photography allowed

    Contact info

    160 Water Street West
    Cornwall, Ontario
    Email: brentwhitford@cornwallcommunitymuseum.ca
    https://cornwallcommunitymuseum.wordpress.com

    Architecture

    Year built: 1840
    Building type: Museum Private residence

    Dates/hours open

    Aug 15, 09:00am - Aug 16, 04:00pm

    Cornwall Historical Walking Tour Doors Open Cornwall and SDG Counties

    Cornwall Historical Walking Tour

    This 6-kilometre (3.7-mile) self-guided walking tour is a voyage into Cornwall’s heritage, depicting events and points of interest from the city’s past. The tour follows nearly 30 plaques that have been erected along Cornwall’s waterfront, downtown and in parts of Le Village in the city’s east end — representing industrial links, the former Cornwall Canal and the founding of New Johnstown.

    • Kid-friendly
    • Parking
    • Self-guided tours available
    • Photography allowed

    Contact info

    Pick up a map and start your tour at the Cornwall Tourism info centre (100 Water Street East), or download one from the description above
    Cornwall, Ontario

    Architecture

    Year built: Various
    Building type: Historical landmark
    Architect: Various

    Dates/hours open

    Aug 15, 10:00am - Aug 16, 04:00pm

    Cornwall Public Library Doors Open Cornwall and SDG Counties

    Cornwall Public Library

    This designated library sits on a former orphanage site that was then acquired by the federal government to house a post office in 1953. In 1997, after the post office had moved to another location and following extensive renovations, the library moved into this building, making it Cornwall's downtown jewel. Guided tours only. Registration required (9:45 a.m. and 2 p.m.).

    • Adaptive reuse
    • French services available
    • Full wheelchair access
    • Guided tours available
    • Kid-friendly
    • Parking
    • Washrooms
    • Photography allowed
    • Rental opportunities

    Contact info

    45 Second Street East
    Cornwall, Ontario
    Email: pdufour@library.cornwall.on.ca
    https://www.library.cornwall.on.ca

    Architecture

    Year built: 1953
    Building type: Library Post office

    Dates/hours open

    Aug 15, 09:45am - Aug 15, 03:00pm

    Cotton Factory, The Doors Open Hamilton

    Cotton Factory, The

    Step into the Cotton Factory, a vibrant creative hub in lower Hamilton and a stunning adaptive reuse of the 1900 Imperial Cotton Company. Home to artists, artisans, and creative professionals, it offers open studios, galleries, pop-up markets, and versatile event spaces. Discover dramatic Gothic industrial architecture, original details, and a rare, fully operational 1944 Otis Fensom freight elevator.

    • Adaptive reuse
    • Full wheelchair access
    • Kid-friendly
    • Parking
    • Self-guided tours available
    • Washrooms
    • Photography allowed
    • Rental opportunities

    Contact info

    270 Sherman Avenue North
    Hamilton, Ontario
    Email: laura@cottonfactory.ca
    https://www.cottonfactory.ca

    Architecture

    Year built: 1900
    Building type: Commercial Green building
    Architect: E.B. Patterson

    Dates/hours open

    May 02, 10:00am - May 03, 04:00pm