This updated and revised guide to Barcelona features an extensive selection of architecture dating from the period begins with the architectural manifestations of modernisme and noucentisme through the more innovative proposals from the Modern Movement, rationalist works, the major projects built for the Olympic Games, and the Universal Forum of Cultures, until the consolidation of Gran Via and the Diagonal, and the two major urban transformations undertaken in the city around the 22@ district and the Plaça Europa.A document that, in addition to being a conventional guide, also offers a reflection of how the city of Barcelona has changed, grown and tackled the urban planning, social and cultural challenges that it has faced from the end of the 19th century up to the start of the 21st.