The 1960s were an exciting decade in Montreal. The Quiet Revolution was underway, secularizing government and returning power to the city's francophone majority. Huge skyscrapers were being erected in downtown, including the Place Ville-Marie which was the tallest building in the British Commonwealth. The World Expo was coming to town. And in 1966, the city inaugurated its underground mass transit project, the Métro de Montréal.