Habitat 67, Montreal, Canada
Although Habitat 67 sounds more like a government testing facility than a housing complex, it is one of Canada's architectural landmarks and most famous buildings. Architect Moshe Safdie originally conceptualized the model community as part of his master thesis at McGill University, but soon enough his vision became a reality. The structure consists of 354 prefabricated concrete cubes which are identical, but arranged in various combinations. The complex was intended to redefine urban living, but it quickly became more of an architectural wonder than a prototype for modern development. Today, over 40 years after Habitat 67's debut, Safdie is recognized as a top-tier architect, and has designed over 75 buildings around the world.