Dome

General view, showing the north (left) and west (right) elevations; The Marriott Château Champlain is a hotel in Montreal, Quebec overlooking Dorchester Square. Once owned by CP Hotels and later sold off in the 1990s, it is now part of the Marriott hotel chain. Finished in time for the 1967 world's fair with its famous round porthole-like windows, Marriott Château Champlain stands 133 m (436 ft) high with 38 floors. It was built as the tallest hotel in Montreal and still holds that title to this date. Source: Wikipedia; http://en.wikipedia.org/wiki/Main_Page (accessed 2/8/2008)