Ken Seiling Waterloo Region Museum is the largest community museum in Ontario. Explore an exhibit that covers 15,000 years of human history of the land now known as Waterloo Region. Visit three Doon Heritage Village buildings — train station, blacksmith shop and Sararas House — and learn about how these buildings have changed and evolved over the years.

Located near the waterfront at the foot of Lee Avenue in the Beach neighbourhood — one of Toronto’s most beautiful locations — the Kew Beach Lawn Bowling Club is a busy place. There is lawn bowling as well as croquet in the summer. During winter months, members play darts, table tennis and cards, and organize social events. Come and check them out.

Visit Burlington Fire - Station 5 in Kilbride during Doors Open Burlington. Take a tour of the station with the firefighters and learn about all of the tools that they use on the trucks to help keep our community safe!

Knox Presbyterian Church celebrated its 185th anniversary of community service in May. We welcome visitors to enjoy tours highlighting the history of Knox and its 15 Memorial Stained-Glass Windows. The windows are dedicated to many local leaders including lake captains, ship owners, builders, an architect, a Mayor of St. Catharines, a postmaster, and other business leaders.

Knox Presbyterian Church is known for its high-quality building materials, beautiful interiors and gorgeous stained glass. The interior features Italian marble, British Columbia cedar and redwood, and British lantern lights in the sanctuary. Two stained-glass windows are illuminated from the east and west, highlighting the life of Jesus and the Book of Revelation. Nepean fieldstone was used for the exterior.

Following the Presbyterian tradition, Knox in Waterdown is an important community hub responding to the needs of the parish. The older Georgian hall is used for food service and community gatherings. The Edwardian sanctuary is fitted out with a stage and a full set of musical instruments that are played for Sunday mass, as well as other occasions.

Serving Scarborough for more than 175 years, Knox United Church, Agincourt held its first service in a wood-frame structure; the current brick church was built in 1872. While some voted to join the United Church in 1925, others chose to form a new Knox Presbyterian congregation. There has been much growth here since the Second World War, with enhancements/new facilities.

Enjoy panoramic views from these 12th-floor offices in Toronto’s Globe and Mail building. KPMB Architects occupies this new space, complete with four large open work zones, a wood-lined pavilion, and exposed concrete and glass, giving the space an industrial yet sophisticated vibe. Hear from architects and designers who will share insights from their current projects through tours/presentations throughout the day.

As part of Doors Open London, come and explore Labatt Memorial Park — the world’s oldest baseball park! Watch games featuring under-16 teams from the Great Lake Canadians and Ontario Nationals. Enjoy guided tours and explore the history and stories of this iconic park. Also, enjoy the pop-up exhibit by the Canadian Baseball Hall of Fame and Beachville District Museum.

Lake St. George Field Centre is a beautiful experiential learning facility surrounded by woodlands, open meadow and a kettle lake on the Oak Ridges Moraine. Visitors can enjoy a rare chance to explore the property, including special tours of the 1906 Davis Hall and a solar‑powered pontoon ride. This site is stewarded by Toronto and Region Conservation Authority. Pre‑registration required for site access.

The Lake Street Armoury is a prominent landmark reflecting Canada’s early 20th-century militia movement. Long central to local military life, its fortress-like design symbolizes strength and permanence. It continues to operate as the home of the 10th St. Catharines Field Battery Artillery and the Lincoln & Welland Regiment, maintaining its historic role as a place of training and service. Hourly Tours - Pre-Registration Required

This former stagecoach inn is the only remaining public building from the milling era on the lower Humber River. The two-storey brick building with double verandah offers spectacular views. The original halls and staircases have been preserved. Costumed guides will lead tours of the house and wildflower garden. 

Operated by the Langford Conservancy as a community hub, this charming, restored brick one-room schoolhouse features high tin ceilings and original wood floors. The Langford Schoolhouse serves as a nonprofit venue designed to support rural heritage, often hosting community events focused on local agriculture and history.

The Booth Mansion, built in 1906, now serves as the Ottawa campus of the Laurentian Leadership Centre (LLC) of Trinity Western University. The LLC offers a live-in academic program that combines field placements, upper-level coursework, and community living in this historic mansion. Through the LLC program, students gain work experience through placements across politics, advocacy, media, NGOs, and the private sector.

Laurier House commemorates two of Canada’s most notable prime ministers — Sir Wilfrid Laurier and the Right Honourable William Lyon Mackenzie King. For over 50 years, from 1897 to 1948, the house occupied a central position in Canada’s political life as the residence of Laurier and, after his death, of Mackenzie King.

Come and experience the unique architecture of Layer Cake Hall. Built in 1859, it was originally commissioned by the Mechanics’ Institute. Over the years, it has passed through different owners and has served various functions. Now owned by Loyalist Township, it houses the Lennox and Addington County Library, Bath Branch. Join the library staff for a fun day!

Nestled on the shores of Lake Couchiching, the Leacock Museum National Historic Site is housed in the summer cottage, boathouse and gardens of famous Canadian humorist and economist, Stephen Leacock (1869-1944). Leacock was known for his witty and satirical works (particularly Sunshine Sketches of a Little Town). His legacy is honoured annually through the Stephen Leacock Memorial Medal for Humour.

Coronation Branch 286 Rexdale has stood here since 1937 to serve Canadian veterans and their families. The Legion Experience Museum was established to tell the intersecting stories of Canadians and the military through art and artifacts. Knowledgeable volunteers will answer your questions. Search records to find family members, try one of the child-friendly activities or put on a military kit.

Come and explore Ontario’s Legislative Assembly — an impressive structure that has been home to the province’s legislature since 1893. Alongside oak floors and Italian marble finishes is artwork from the Government of Ontario Art Collection. During Doors Open, visitors can enjoy several exhibits on self-guided tours that include the legislative chamber. There’s even a kid-friendly scavenger hunt. (No tripods allowed.)

The Library and Archives Canada is in a prominent structure, comprising two symmetrical four-storey wings that wrap around a central nine-storey tower block. It’s located at the western extremity of Ottawa’s Parliamentary Precinct overlooking the Ottawa River. Clad in grey granite, the building is accented with polished granite panels and brushed aluminum railings. The building houses the National Library collection.

Discover the interim main library inside a former bank — designed in 1924 by John MacIntosh Lyle, one of Canada’s leading beaux-arts architects. In this unique setting, where modernism rubs against a classical esthetic, you will learn about the Library of Parliament’s collections and services as well as have a look inside its reading room, upgraded in 2018.

The tradition of written communications comes full circle in this building, once home to the Lindsay Daily Post and currently home to the Kent Bookstore and a number of other businesses. Featuring original wooden floors and magnificent tin ceilings, this historical facility is reputed to be haunted.

Ottawa’s first high school has occupied this prime downtown location alongside the Rideau Canal since 1874. The Gothic revival building has been extended and renovated several times. It has many distinct architectural features — including an impressive 660-seat auditorium that maintains much of its original character, and an attic that students used as a shooting range during the Second World War.

Have you ever wondered what the symbols on gravestones really mean? Join local historian Don Willcock for a guided walking tour of Peterborough’s historic Little Lake Cemetery and discover the hidden meanings behind iconic memorials. Opened in 1850 and surveyed with the assistance of Sandford Fleming, the cemetery is the final resting places of some of Peterborough’s most prominent citizens.

Home to Brockville’s local radio broadcasters, 104.9 myFM and 103.7 Giant FM provide local news, information, weather, community updates and entertainment to Brockville and the surrounding region. The stations are among the community’s longest-standing media organizations and continue to serve Eastern Ontario audiences.