Established in 1874, St. Thomas's Anglican Church was one of Canada’s earliest Anglo-Catholic parishes, known for its liturgical and musical traditions. The congregation moved into the present building in 1893. Architectural highlights include the hammerbeam roof, the stunning reredos with its hand-carved statues, the octagonal First World War baptistery and the magnificent stained-glass windows by England’s Bromsgrove Guild.

Built in 1955, this church is recognized as Canada’s first mid-century modern sacred structure. Constructed by Estonian refugees forced to leave Europe during the Second World War, the church maintains their social, linguistic and cultural ties. The 1972 addition and alterations were based on the original design. During Doors Open, enjoy organ concerts accompanied by a male choir.

In 2016, St. Simon-the-Apostle and St. Peter’s Carlton Street amalgamated to form this new parish. Both churches have long histories of service in the city. The building itself is a graceful Jacobean arts and crafts-style building, dating from 1880. Some parts of it were designed by William Symonds and others by Eden Smith. Its various stained-glass windows are simply stunning.

St. James Cathedral is both a parish church ministering to the historical St. Lawrence neighbourhood and a cathedral. It is the spiritual centre of the diocese and a focal point for Toronto’s civic life. Known for its towering spire and the distinctive ring of its bells, it opened for services in 1853 after fire destroyed the previous building.

A synagogue until 1937, St. George’s Greek Orthodox Church stands as a dynamic affirmation of the spiritual and artistic achievement of the Byzantine religious tradition. Except for its Romanesque façade and a few Moorish capitals, the renovated structure is now more thoroughly Byzantine in its layout and esthetic décor. The church interior has been entirely painted by master iconographers.

St. George's Hall is a Toronto landmark. Built in 1891 by the St. George's Society, the building has been home to the Arts & Letters Club of Toronto since 1920, a private club formed in 1908, a social club centred on the arts. Founding members include Group of Seven painters, Robertson Davies, Vincent Massey, Marshall McLuhan, Mavor Moore and others.

St. George's on-the-Hill has been a landmark in Etobicoke for 180 years. Built in 1847, the church building has undergone many renovations but still incorporates the original structure in the centre of its worship space. Highlights include many stained-glass windows (including the modern "Children of the Bible" window), a Casavant pipe organ, an 1865 font and the parish's small cemetery.

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.

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.

RevelHouse is a unique architecture practice in the Toronto market. They focus on what they've coined "social architecture," which encompasses attractions, mixed-use projects and even multi-family residential spaces. Clients have included Cineplex, Mattel, the NBA, Splitsville and Pickleplex. During Doors Open, come and see work from across the globe and discuss how “social architecture” contributes to create compelling spaces.

RAW Design's new office showcases the firm's dedication to adaptive reuse and sustainable design. Originally a one-storey mechanic’s garage, the building has been transformed into a two-storey structure featuring timber construction. The newly added second floor houses RAW's office, while the ground floor remains a vibrant commercial space. This project highlights RAW's innovative approach to creating functional and community-focused architecture.

Celebrating 20 years, Q4 Architects is the largest woman-owned and -led architectural firm in Canada. They are focused on designing residential and mixed-use projects with a sense of dignity, at all levels of affordability. This studio is perched above the West Don River, with sweeping views of the ravine. Come and explore the studio's boardrooms, creative studio and collaboration spaces.

The Polish Combatants' Association Branch 20, a non-profit organization founded in 1948, is dedicated to honouring the memory of Polish veterans and promoting Polish history, culture and language. The three-storey building includes an underground parking lot, offices, a dining room, banquet hall and military museum. The building has a rich history and holds great meaning for the Polish-Canadian community.

The Parkdale Arts and Cultural Centre was the City's Police Station — 6 Division from 1931-63. The building now has nine active work studios for artists, as well as community offices and an art gallery, Gallery 1313 (once the site of 12 holding cells for prisoners). The art deco clock above the main entrance was repaired but is not currently functioning.

The Nursing Simulation Centre allows York University's nursing students to achieve their professional development/learning goals. Located on the third floor of the Health, Nursing and Environmental Studies building, it can be divided into two unique spaces — the Nursing Skills Lab and the Computer Skills Lab. The Nursing Skills Lab houses adult medical-surgical beds, a pediatric area and isolation two rooms.

In 2020, the Nia Centre for the Arts embarked on its most ambitious project yet. It renovated its 1,300-square-metre (14,000-square-foot) space into Canada's first professional multidisciplinary arts facility dedicated to Black artistic traditions. Located in the heart of a historically Black neighbourhood, the new facility features a performance space, youth-designated space, a digital media lab, event space and more.

Catch a lawn recital of the Met's 54-bell carillon before entering this church. Take in the rich woodwork, enjoy a guided tour, explore a visual history display and watch pipe organ demonstrations. You can even take a bell tower tour to get up close. For Doors Open, experience a special presentation of Norval Morrisseau's "Family of the Spiritual Journey."

Since 1993, the Meridian Arts Centre has welcomed thousands of visitors, patrons, performers and artists through its doors. In 2015, Toronto City Council approved the consolidation of the governance and operations of Meridian Hall, St. Lawrence Centre for the Arts and Meridian Arts Centre into one new organization called TO Live. Come and explore the Centre during Doors Open.

The Mercer Union is a non-profit, artist-centred space in Toronto that presents innovative exhibitions by diverse Canadian and international artists in formative and established stages of their careers. Founded in 1979, it moved to its current space in 2008. Constructed in 1913, this building features decorative pilasters and ornate terracotta tiles on its façade. Original tin ceiling tiles also remain.

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.

Founded in 1983 as Toronto Community-Videotex, InterAccess is a gallery, educational facility, production studio and registered charity dedicated to new media and emerging practices in art and technology. Each year, they deliver multiple exhibitions, events and workshops that explore the impact of technology on the social, political and cultural aspects of our lives. During Doors Open, check out their studios.

This century-old cinema, located in Toronto's Annex neighbourhood, is the world's first and largest documentary cinema. It is home to first-run Canadian and international documentary films, as well as special presentations, cultural events and some specialized fiction programming. The building is the flagship venue of the annual Hot Docs Festival, as well as several of the city's independent film festivals. (Photo: Joseph Michael)

HOK's Toronto studio creates award-winning interiors, architecture and planning solutions. Its technology-enabled workplace is balanced with inspirational art, sculpture, natural light, 360-degree views and a welcoming esthetic. It provides an environment for heightened collaboration, engagement and creativity. Located on the 22nd floor, it provides excellent views of the downtown core, including City Hall, the Canada Life Building and Ontario courts.

HackLab.TO is a decades-old, member-run organization dedicated to makers and hackers (in the creative sense, as defined by the Massachusetts Institute of Technology) from all walks of life. Come and visit the uniquely adorned space filled with members' projects — ranging from art to electronic exhibits to design projects. The space also provides many tools for members to use.

Located in the heart of the city, the Goethe-Institut Toronto is the meeting point and partner for anyone interested in contemporary German art and culture as well as the German language. It welcomes all into its community space and newly launched Media Lounge, highlighting the relationship between the natural and digital realms.