Doors Open Milwaukee, an annual event that opens over 130 buildings to the public to visit for free, returns this weekend, Sept. 23-24.

Doors Open Pittsburgh hosts various tours that showcase the city’s architecture and history by providing access to iconic buildings. The river tours are an extension of the Doors Open mission on ...

Behind the neo-Gothic doors of St Fin Barre’s Cathedral in Cork are Maik Barry and Eileen Segatz. More than 30 buildings in the city will be open to the public as part of the Open Day initiative ...