AEWORLDMAP.COM (3,300+ posts)

Building: Cidade da Musica
Location: Rio de Janeiro, Brazil
Completion: 2011
Architect: Atelier Christian de Portzamparc
Structural engineering: BETON Engenharia

AE Interests: Acoustics, 1800 seat music hall that converts into 1300 seat opera hall, concrete walls 30m high

Source: [1]