This building was designed in 1922 by John M. Lyle (1872-1945) for the Thornton-Smith Company, an antique furniture and interior design firm. The crowning jewel of this property is its Aperture Room — a stunning event venue that keeps the 100 years of history on Yonge Street alive by boasting exposed brick, hardwood floors, three magnificent skylights and original windows.

TIFF Lightbox is a five-storey podium featuring a public atrium, five cinemas, two galleries, three learning studios, two dining spaces and the Film Reference Library. Since its 2010 completion, it has been the permanent home for the Toronto International Film Festival as well as year-round educational, festival and new release programming. Explore artifacts, hands-on activities and guided tours (pre-registration required).

The Tillsonburg Pioneer Cemetery, established in 1838 and closed in 1881, is one of the oldest cemeteries in the area. Many early settlers, including the Tillson family, are buried there. A 2015 restoration added an obelisk, benches, section markers and a gateway, preserving its history and honouring those interred.

The Tillsonburg Station Arts Centre is a non-profit, charitable community arts hub housed within two beautifully reimagined 19th-century train stations. Serving as a vibrant creative centre, it features art galleries, hands-on workshops and an artisan shop showcasing the work of talented local artists. With year-round cultural programming for all ages, the centre fosters creativity, learning and connection within the community.

Todmorden Mills allows visitors to immerse themselves in Toronto's past. It features a collection of 19th-century industrial and domestic buildings (including a paper mill that houses the Papermill Theatre and Gallery), a former brewery, two restored period homes and a wildflower preserve. Discover Toronto’s history through the people who made the lumber, flour, beer and bricks that built this city.

Topsy Farms is a popular tourist destination offering hiking trails, farmyard activities, events, workshops and classes. During Doors Open, explore the farm and property with some fun activities. Hike through a 6-km (3-mile) forest trail, immerse yourself in the organic garden, skip stones at the beach, visit with farm animals and enjoy a scavenger hunt made just for kids.

In 2025, the Toronto and Region Conservation Authority unveiled their new head office, bringing together cutting-edge sustainability design and practice. One of North America’s most sustainable buildings, it boasts low greenhouse gas emissions. Look for the beautiful cascading water walls and the naturally lit atrium. See how green building design in an urban landscape can integrate with the natural environment.

The Toronto Camera Club was incorporated in 1893, with its origins back to 1888. It is the oldest camera club in Canada, and among the first in North America. It has occupied a major place in the culture of Toronto. The club has a working darkroom and gallery in the basement, a two-storey auditorium and a gallery for photographic exhibits.

By 1899, the burgeoning Toronto Carpet Manufacturing Company Limited outgrew its original space and moved into this impressive new factory. The structures were built in the classic 19th-century style around a central quadrangle and powerhouse. During Doors Open, tenant suites (largely design studios) will be available to view, showing how the complex continues to provide spaces that inspire new ideas. (Photo: Ben Rahn, A-Frame)

This building is one of Toronto’s most famous landmarks and a year-round gathering place. The design showcases the civic square, the podium and the circular council chamber, creating a sculptural quality that makes it such a striking landmark. Doors Open visitors can view the 27th-floor observation deck, the council chambers and the Hall of Memory. Special programming throughout the weekend.

The Toronto Humane Society (THS) is one of Ontario’s largest animal welfare organizations. With over 135 years of providing care for animals, the THS is an industry leader in shelter care, animal training, behavioural consultations and veterinary services. It is their mission to improve the lives of animals. Knowledgeable volunteers be on hand for tours and questions. Bring your camera! (No tripods allowed.)

The Architecture Building is home to the Department of Architectural Science at Toronto Metropolitan University. Completed in 1981, this unique building with dramatic atriums was designed by the acclaimed Canadian architect Ron Thom (1923-86). Thom also designed Massey College (1963) at the University of Toronto, the Toronto Zoo (1974), the Shaw Festival Theatre in Niagara-on-the-Lake (1973) and numerous other projects.

This world-class facility was the largest sport-related new build for the 2015 Toronto Pan Am and Parapan Am Games and the largest infrastructure investment in Canadian amateur sport history. The 29,000-square-metre (312,000-square-foot) centre includes two internationally sanctioned 10-lane, 50-metre (164-foot) pools, a world-class dive pool and dryland dive training facilities, a four-court gymnasium, an indoor running track and more!

The Toronto School of Art is housed within a historical building. Over the years, it has been everything from a garment factory to an artist commune. Purchased in 2016, it has been the school's permanent home since 2019. With preserved century-old features and six light-filled studios, the school continues to be a vital part of Toronto’s art community.

The Star has been a Toronto institution since it was founded in 1892. Step inside their newsroom where award-winning journalism is made. Meet some of the team and learn more about the Star’s long-standing history. Enjoy family-friendly crafts and bring home a souvenir. The Star has also been making a difference in the lives of children for 100-plus years.

Finch Yard is one of six Toronto Water operations yards in the city. This yard will showcase some of the equipment, tools, technology and materials that Toronto Water uses to ensure the distribution of high-quality water and the collection of waste-water — including 67,000 valves, 42,000 hydrants, 10,000 km (6,200 miles) of sewers, 155,000 maintenance holes and 170,000 catch basins.

The iconic Toronto-Dominion Centre is the vision of two Canadian corporations who collaborated to change the face of Toronto's Financial District. An outstanding model of the international style of architecture, the TD Bank tower opened in 1967 and changed the future of Canadian business, introducing the modern workplace to a business community eager to step up and compete internationally.

Explore the Reformatory Side Trail, featuring two large ponds dug by incarcerated labourers, the Eramosa River and a beaver dam on Clythe Creek. Hiking club guides will lead 30-minute walks from 10 a.m. to 3:30 p.m. The trail is partly paved and hilly. Parking is in the lot opposite York Road and Elizabeth Street.

ln 1980, two long-established Annex congregations joined to form this church: St. Paul's Avenue Road United and Trinity United. For more than a century, Trinity-St. Paul's has been a Bloor Street landmark. Known for community outreach, social justice/service, and the performing arts, the church remains a vital community hub. Many orchestras and ensembles call it home, including Tafelmusik.

Turner Fleischer is a multidisciplinary design studio providing architecture, interior design and graphic design services across Canada. The Toronto studio has been their home for 20-plus years. Reimagined in 2020, this former 1970s industrial building was transformed into a contemporary, people-centred workplace. Explore the studio and learn how design shapes our lives. Tours, interactive demonstrations and a Lego construction zone.

Step inside Ontario's public education broadcaster! For the first time, TVO is participating in Doors Open Toronto, welcoming visitors for a behind-the-scenes look at their newly renovated William G. Davis Studio. Visitors will get a unique look at television production, exploring how one flexible space is home to many productions. Lots of kids’ activities and even special appearances by Polkaroo.

This traditional Ukrainian church, built in the Baroque-revival style, features gorgeous hand-painted iconography, ornate woodwork and a unique mosaic mural of our Lady of Holy Protection. The stained-glass windows are beautiful and are done in the Byzantine style. Take a tour to learn more about the architecture and the art, as well as some theological insights.

The Studio at the University of Ottawa Press is a dynamic place for ideas, creation and encounters. Located at the downtown Sun Life Financial Centre with accessible facilities, the Studio is home to publishing professionals who work alongside authors. This downtown Ottawa base serves as a forum for the university community, members of government, non-profit organizations and the reading public.

Constructed in 1909 as the Toronto Reference Library, this striking building was designated in 1973. Since then, it has undergone a thoughtful transformation into a vibrant student services hub. Today, it is the flagship retail location for the University of Toronto Press. The interior retains many of its original features. Explore the building and enjoy special exhibits and interactive displays.

The Department of Physics at the University of Toronto — with its hundreds of undergraduate and graduate students — is located inside the McLennan Physical Labs. The building is named after John C. McLennan, a professor who laid the foundation for quantum optics and condensed matter, and subatomic and atmospheric physics. The building features the 14-storey Burton Tower, which houses its telescopes.