Bez + Kock Architekten used a bridge to connect an extension and a 17th-century museum in Arnsberg, Germany, forming the Museum and Cultural Forum South Westphalia.
The new building is a travertine-clad extension to the Sauerland Museum, housed in the Landsberger Hof, that dates from 1605.
Photo is by Wettbewerbe Aktuell
Museum and Cultural Forum South Westphalia steps down down its hillside site to meet the road and contains a series galleries for temporary exhibitions.
Bez + Kock Architekten won the competition for the project in 2012 with a proposal was to link the two structures via an underground passageway.

At the client's request, this original plan was completely redesigned.
Instead of going under the sloping site Bez + Kock Architekten designed a second proposal for going over it.
The basement of the original museum building now links to through to the top floor of the new gallery building with a bridge-like corridor.
This corridor link features three diagonal bay openings with narrow glazed windows.

Three blocks that form the Museum and Cultural Forum South Westphalia are staggered down the hillside between the old town above and the busy Ruhrstrasse below.
"By adopting the two main angles of Landsberger Hof and Ruhrstrasse, the new construction blends in naturally in its built environment," said the practice.

The smallest, uppermost level houses the beginning of the exhibition.
Views out over the town are visible through a large panoramic window tha...