This guide brings together the most important and interesting examples of modern and contemporary architecture in Barcelona. It covers the emergence of Modernisme and Noucentisme, creative periods for which Barcelona is known the world over: the emblematic German Pavilion by Mies van der Rohe (1929), rationalist works conceived from the 40s and 50s, large housing projects of the 70s, the Olympic architecture of the late 80s, post-Olympic architecture, examples of the ongoing urban redefinition from the 90s, and the iconic architecture of the 21st century.