HABITAT 67, or simply Habitat, is a model community and housing complex in Montreal, Quebec, Canada, designed by Israeli-Canadian architect Moshe Safdie. It was originally conceived as his master's thesis at the School of Architecture at McGill University and then built as a pavilion for Expo 67, the World's Fair held from April to October 1967. It is at 2600 Avenue Pierre-Dupuy on the Marc-Drouin Quay next to the Saint Lawrence River. 

Habitat 67 is widely considered an architectural landmark and one of the most recognizable buildings in both Montreal and Canada.

Habitat 67 comprises 354 identical, prefabricated concrete forms arranged in various combinations, reaching up to 12 stories in height. Together these units create 146 residences of varying sizes and configurations, each formed from one to eight linked concrete units.

- Wikipedia