Revista

With their lookout tower in the Hardwald recreation area near Zurich, Nadja and Lukas Frei of Luna Productions have won our readers' choice for the Swiss-Architects... Elias Baumgarten

Early in March, architect Frei Otto died at the age of 89. He was announced posthumously as the winner of the 2015 Pritzker Architecture Prize – only the second German architect, after Gottfried Böhm, to receive this honor. Ulf Meyer looks back at the life of a visionary. Ulf Meyer