Detour for Dwell Magazine  Photo 1 of 9 in Oslo, Norway

Oslo, Norway

1 of 9

The 400,000-square-foot Norwegian National Opera and Ballet, designed by the Oslo- and New York–based firm Snøhetta, features a plaza and roofscape conceived as a single glacierlike object entirely available to the public—–embracing what architect Tarald Lundevall calls the "Scandinavian idea of common ownership."