Join the Royal Canadian Regiment Museum to explore Canada’s military history through interactive exhibits and family-friendly activities. Discover the special exhibition Fascinating Redcoats, highlighting Wolseley Barracks from 1886 to 1914, its role in early militia training, and its impact on London. Learn how this historic site shaped both the military and the surrounding community. Enjoy musical performance!

Formerly Chalmers Presbyterian Church, built in 1871, it was designed by Henry Langley in the roman gothic style. In 2025, the church was sold to the Mission. They started a meal program, provided secure storage bins, laundry and shower facilities for people experiencing homelessness. Its goal is to provide a safe and loving environment for anyone in need.

The Royal College of Physicians and Surgeons of Canada has guided learning for specialist physicians so they can deliver the best health care for all. This landmark building, which overlooks the Rideau Canal, is a classically inspired structure — featuring impressive stained glass and an interior courtyard. It was formerly a monastery for the Sister Adorers of the Precious Blood.

Royal House Redeemed Christian Church of God welcomes visitors to its first Doors Open event. Housed in a rare brick Romanesque building with a striking 12-petal stained glass rose window, the site has been a place of worship since 1834. Since 2006, Royal House has revitalized the space as a vibrant, multicultural congregation representing 30 nations, with dynamic services, choir and outreach.

Constructed in 1887 following the great fire of the same year, this office block is a fine example of Ontario’s late-19th-century commercial vernacular style. Once part of the historical Syndicate Block, it reflects the town’s early retail growth, it now houses the Royal Rose Art Gallery & Gifts. A drum circle will be led by Glenn Marais from noon to 4 p.m.

Explore Ruthven Park National Historic Site, with free exhibits and activities including an agricultural display, a 19th‑century hygiene exhibit, guided tours of the 1840s Greek revival-style Thompson Mansion, scenic walking trails and a visit to the ghost town of Indiana. The park spans 598 hectares (1477 acres) of forest, wetlands, sloughs, open fields and an island.

Built in 1892 for industrialist James Kendry, Sadleir House is a striking Queen Anne home that was once the heart of Trent University’s Peter Robinson College. Now run by the not-for-profit P. R. Community and Student Association, it has been turned into a vibrant community hub hosting concerts, exhibitions and more. Enjoy staff-led tours and a vintage clothing display by Statement House.

Become immersed in this church’s history and present-day community through self-guided tours and exhibits. Enjoy mini concerts throughout the day featuring Saint James’ vibrant musical ensembles. Brassroots, celebrating its 40th anniversary, will perform two 45-minute concerts at 11:30am and 2:30pm, sharing exciting brass music and their history through displays, with opportunities to meet performers.

Salem Chapel was an important centre of abolitionist and civil rights activity and was the cornerstone of a growing African American community in Niagara. Harriet Tubman, who attended the church, led many freedom seekers to St. Catharines. The chapel has an auditory-hall design typical of churches associated with the Underground Railroad movement. It also has many original artifacts on display.

A Methodist mission was established here in 1822, attracting both white settlers and Indigenous residents. In 1830, a wooden structure was built. Over time, the congregation grew and a brick building replaced the wooden one in 1860. The current structure dates from 1902. Of interest is the simple wooden furniture and the adjacent cemetery (containing many early settlers).

Known locally as the Shoemaker's House, this early Wellington Street East residence was built in 1862 by shoemaker Joshua Hunt. A modest, Georgian-style, two-storey wood-frame home, the building features rare rooflines and fine craftsmanship. In 2024, it became home to the Saltbox Cafe, transforming the historical space into a warm, inviting hub where community and flavour meet.

Explore the Sault Ste. Marie Armoury, home to the 49th (Sault Ste. Marie) Field Regiment, Royal Canadian Artillery and the 33 Service Battalion. Today, army reserve and cadet units use the facility for military drills and training. Visit the Lest We Forget Remembrance and History Library and Last Post Museum. Learn about anti-aircraft guns and the Howitzer artillery gun outside.

Located in the old post office building, the Sault Ste. Marie Museum showcases artifacts that illustrate the city’s history. Over three floors of exhibit space and one and a half floors of archival space, exhibits include the Walter Wallace Military Gallery, Skylight Gallery, Marine Gallery, Music Gallery, Sports Gallery and the Durham Gallery, which features rotating exhibits.

Explore the world of true crime at the James L. McIntyre Centennial Library! Join authors Judy Penz Sheluk and Amanda Capper to learn about researching real-life cases and transforming historical documents into gripping narratives. Sign up for a guided tour of the library, and along the way, learn about historical criminal cases and the collections that the library holds.

The North Branch of the Sault Ste. Marie Public Library opened in 2019 — including a new storage space for the library’s archives (with some records that date back to 1822). During Doors Open Sault Ste. Marie, the Archive Technician will facilitate a tour of the spaces as well as show items from the archives. Come and enjoy this rare opportunity!

Located along the St. Lawrence River, Ontario Power Generation's (OPG's) Saunders Hydro Dam Visitor Centre showcases the history of the St. Lawrence Seaway and Power Project as well as the communities and people affected. Come explore our exciting, informative and interactive displays that make our visitor centre a key tourist destination in the Cornwall area.

Scadding Cabin, Toronto's oldest surviving building, was built for John Scadding, John Graves Simcoe’s assistant. This one-room house was acquired by the York Pioneers in 1879 and rebuilt on its present site in time for the inauguration of the Toronto Industrial Exhibition (now the Canadian National Exhibition). This is recognized as the earliest act of architectural preservation in Toronto.

Archival records and photographs are on display at the Scarborough Archives. The archives contain documents, photographs, maps, cemetery records and a collection of local community histories. Located inside the former W.J. Morrish General Store, it is also the home of the Scarborough Historical Society, which helps to promote, preserve and stimulate an interest in the history of Scarborough.

Nestled in Thomson Park are four heritage buildings that comprise the Scarborough Museum. Hear stories, old and new, that have shaped the ever-changing community of Scarborough. Explore the McCowan Log House, Cornell House and the Hough Carriage Works. Learn how Scarborough developed from land farmed by Indigenous peoples and European settlers into a major suburb of North America's fourth-largest city.

Do you envision a future where older adults live life to the fullest? Our goal is to change the way we age in Canada. The RIA supports research in several areas and mobilizes that research into programs, resources and education. Explore their state-of-the-art building and lab spaces, meet their researcher and staff and learn how you can get involved.

Explore the different decades of Schneider Haus and get hands on with some artifact replicas, including the world’s oldest dated crokinole board! Meet Nathan Walsh, a member of the World Crokinole Championship organizing committee and a competitive crokinole player and past winner of the Schneider Haus crokinole tournament. Try crokinole and enjoy other outdoor games in our green spaces.

Designed by Hobin Architecture, the new School of Photographic Arts: Ottawa (SPAO) building was completed in just 43 days in the heart of Little Italy. The contemporary, purpose-built design is quintessential to the development of photography, with room for the SPAO Centre Gallery, classrooms and the most well-appointed darkroom in the Ottawa region.

The Scott Library, the main library for York's Keele Campus, is a five-storey brutalist structure that houses the Clara Thomas Archives & Special Collections, Media Creation Lab, Learning Commons, Adaptive Lab, Sound and Moving Image Library, Map Library, thousands of books, many works of visual art and more. Explore all five floors and learn more about the art/artists you discover.

Visit this unique museum to view collections that show how scouting contributed to Canada’s heritage while helping to develop youth into valued citizens. See displays of photos, uniforms, badges, scrapbooks, diaries and other memorabilia. The museum also houses their own amateur radio station (VE3SHQ), which allows youth to participate in the largest on-air and on-the-internet scout gatherings in the world.

The Second Chance Ranch is a beautiful farm that is committed to the rehabilitation of animals of all breeds — addressing behaviours and training challenges — to improve the quality of their lives, with the ultimate goal being their forever home or re-homing. Come and experience the positive and friendly environment and visit with the animals!