Few architects can claim to have materialized their most ambitious ideas at a young age, but Ma Yansong (Beijing, 1975), by the time he had passed his 40s, was already at the helm of a practice based in three countries and boasting a long list of completed projects. All of them demonstrate a fondness for buildings “flowing with people” that throb with an oneiric spatiality and a close bond with the territory on which they stand. These are the recurring motifs in a brilliant career that this issue of Arquitectura Viva wishes to present through four cultural works located in his native land: an opera house, a library, a convention center, and a large sports complex.