As one of the major signature events taking place in connection with Copenhagen as the UNESCO World Capital of Architecture in 2023, Open House Copenhagen has revealed more than 50 sites included in its program. The event represents an invitation for visitors to take a look inside iconic buildings that are typically only visible from the outside. Included in the list are examples of floating architecture on Refshaleøen, one of Arne Jacobsen’s masterpieces, along wth unusual spaces such as the interior of a power plant or an underwater passage tunnel. Open House Copenhagen takes place on the weekend of March 25–26 2023. The event is open for everyone and is free of charge, but registration is required.