Located in Stittsville, the Goulbourn Museum preserves and interprets materials from the Goulbourn Township area. Built in 1872, the building was once the old town hall for the former township. This popular community hub was home to council meetings, parties and dances. The adjacent office building is used as administrative offices, as well as the museum’s primary collections storage.

Come be an architect for the day! Gow Hastings Architects is a Toronto-based architecture/design studio that creates vibrant places for research, learning, play and discovery. Doors Open visitors will have the chance to participate in an interactive workshop. Through writing, drawing and model-making, staff will guide participants to explore the design of an urban school in a multicultural, global city.

Situated in a park-like setting in the heart of Waterdown, Grace Anglican Church is a welcoming, affirming, inclusive faith community for people of all backgrounds. Its stunning Gothic-revival building, with gorgeous stained-glass windows, was built in 1860. The parish has its own food bank and is engaged in social justice, climate justice, and truth and reconciliation with indigenous peoples.

Dive into Waterloo Region’s past through maps, photographs, postcards, yearbooks and archival collections. This dedicated research space is a treasure trove for anyone curious about local history, genealogy and the stories that shape the community. Plus discover a range of services and resources you may not expect, including specialized scanning and conversion equipment and reference and research support.

Grace United Church was designed by William Thomas — the same architect who designed Toronto’s St. Michael’s Cathedral, Hamilton’s St. Paul’s Presbyterian and Brock’s Monument in Queenston. The magnificent stained-glass windows memorialize early church members and wartime casualties, and the interior reflects the classic Methodist form of practical design. In 2023, the Grace United congregation celebrated its 200th anniversary.

"Cheers to Years" celebrates 100 years of the Graham Arboretum. Join City of London Parks and Forestry staff in Springbank Park for a tour exploring its 1926 origins and unique trees. Eighteen highlighted species feature signage across six categories: Carolinian, Great Lakes, Boreal, Canada-wide, North America and World. Enhancements were funded through partnerships and a Canada Healthy Communities Initiative grant.

The elegant Edwardian gable and bay on Grant Avenue was transformed by Dan Lanois, Bob Lanois and Bob Doidge into the world-renowned recording venue, Grant Avenue Studio. The two-storey box bay façade with stained-glass windows has welcomed artists from Gordon Lightfoot and Stan Rogers to U2 and Johnny Cash. Check out this excellent example of adaptive reuse.

Grosvenor Lodge, an 1853 manor featuring beautiful stained glass, a wrap-around veranda and gardens, opens for a self-guided tour of the home built for Samuel and Ann Peters. Explore displays by Society for Learning in Retirement members, plus retrospectives marking 25 years of Doors Open London, and a video on Heritage Awards. Enjoy music and children's activities on the veranda.

Explore the studio of a leading planning, urban design and landscape architecture firm shaping great communities throughout southwestern Ontario. They create, collaborate and innovate solutions addressing community development needs and challenges. Their renovated office is in a building constructed in 1903 for industrial manufacturing for the Berlin Interior Hardwood Company and is part of the Warehouse District Cultural Heritage Landscape.

Peek inside the historical 401 Richmond Street West building and see how Guido Costantino Projects operates — an architectural design practice located on the second floor. Get a glimpse of their work on award-winning hospitality, retail and residential projects. Come and see how a modern architectural design firm functions in an adapted space See works in progress through drawings and models.

Guild Hall, built in 1857 and relocated in 1978, once served as an evangelical church. Today, the building houses vibrant studios for the Burr House Spinners and Weavers Guild and The Hill Potters’ Guild. Visitors can see working studios where there will be ongoing demonstrations so that they may learn more about the process of both mediums (accessed by staircase).

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.

The Halo Studio is a one-of-a-kind recording studio that offers professional audio engineering services in the heart of downtown Hamilton. Their custom-built studio was originally designed by Trevor Garwood Jones as a dental office in 1972. Some architectural detailing remains and now provides the perfect vibes for creating great projects. Their control room has recorded Bruce Springsteen and Kanye West.

Step back in time and explore the Hamilton Cemetery Gatehouse. Nestled at the entrance to Hamilton Cemetery, Ontario’s oldest public burial ground, this charming structure offers a glimpse into the city’s storied past.

Built in the 1854, the Gatehouse is an example of Victorian Gothic architecture. Once serving as the caretaker’s residence, this heritage building now stands as a gateway to the rich history preserved within the cemetery grounds

Explore the Hamilton Children’s Museum brand-new expanded building and stretch your imagination as you touch, build and experiment in a friendly, child-focused setting. Come see the new exhibits and participate in hands-on activities. Please note visits will be limited to 1.15 hour in length and there may be extensive wait times to visit the museum. Parking is limited.

Hamilton Craft Studios is a 1,300-square-metre (14,000-square-foot) multidisciplinary craft space in a historical wire factory in downtown Hamilton. Panoramic windows fill the space with natural light. The second floor houses woodworking and fabrication spaces, while the third floor features ceramics, textiles and general arts studios — offering tools, equipment and shared workspaces for makers of all skill levels.

Battery Lodge, now home to the Hamilton Military Museum, began as a guardhouse during the 1837 Rebellion. Today it showcases military history through exhibits including Lawyers and Land Pirates and Blood Ties to a Gentle Landscape. Explore the Discovery Gallery, experience life as a soldier and try the accordions or drums celebrating Hamilton: city of music!

Located on the site of the Hamilton Waterworks complex, this museum features two 13.7-metre (45-foot) steam engines which pumped clean drinking water from 1859 to 1910. Built in Dundas, these steam engines are the oldest of this type still standing in North America. Join us for self-guided tour of the Boilerhouse, Pumphouse and Woodshed.

Tisdale House is the oldest home in Ancaster. In the 1820s, the building was occupied by "Charcoal Burner" John O’Neil and housed two charcoal kilns. Later, the house became an undertaker’s parlour run by George Moore. The house has been fully retrofitted and is now home to the Ancaster Community Policing Centre and the Hamilton Police Museum.

Established in 1982 by Fred Hammond, one of the founding members of Guelph’s Hammond Manufacturing, this museum houses an extensive collection of rare and historically significant pieces. The 2,000-plus items exhibited here illustrate the development of radio throughout the past 100 years. Included are crystal radios, early tabletop and broadcast pieces, early wireless sets, military and amateur radio equipment.

Originally a church, this dynamic cultural institution is dedicated to providing the community with accessible and affordable spaces to share, create, educate and perform. With a 700-seat auditorium, a commons area, kitchen/banquet facilities, and numerous smaller lofts and studios, the Harmony Centre is an example of the value of retrofitting an existing community asset to respond to changing times.

Opened in 2024, Harmony Hall is located within the former Vandorf Community Hall constructed in 1921 and is now a modern live-music and cultural venue. View historic photographs and displays, enjoy live acoustic performances by local musicians and perform your own song while enjoying light refreshments.

The Hastings and Prince Edward Regiment Museum is located on the main floor of the Belleville Armoury. The museum preserves the history of the militia, specifically the Hastings and Prince Edward Regiment, through the collection and preservation of military artifacts and documents of historical significance to the Regiment and its antecedent units.

Come visit HDR London's architectural design studio to tour an architectural practice and talk to team members about architecture and design. Take a virtual tour of completed and in-progress projects. Learn about the design process for commercial and institutional projects and join conversations on how architectural design impacts their lives. Visiting children can participate in a design competition.

One of the area’s oldest buildings, Heintzman House began as an adobe brick cottage in the early 19th century. It was expanded in 1817 by Colonel George Crookshank and later transformed in the 1930s into its present elegant form by the grandson of the founder of the Heintzman Piano Company. Visitors can enjoy guided tours and heritage displays.