Expo 67, considered to be the most successful World’s Fair of the 20th century, was organized along the theme of ‘Man and his World,’ meant to characterize the liberation and openness of the period. One of the seventeen elements of the theme (which included ‘Man the Creator’ and ‘Man the Producer’) was Habitat 67, a landmark housing development designed by Moshe Safdie. The project was intended to introduce innovations in affordable housing through the use of modular units with private gardens (a precursor of the prefab housing now in fashion).  Regarded as a spectacular achievement, it became a source of pride for Montrealers. Also part of the Expo was Buckminster Fuller’s geodesic dome, a structural invention infused with a utopian agenda about the future of the world.