Vancouver is a Canadian city in the province of British Columbia. It is the largest metropolitan centre in western Canada and third largest in Canada. The city's population is 583,296 and that of the metropolitan area 2,132,824. Vancouver is one of the cities of the Greater Vancouver Regional District (GVRD) and of the larger geographic region commonly known as the Lower Mainland of BC. Vancouver was the host city for the 2010 Winter Olympics, 2005 Grey Cup, the 2006 World Junior Hockey Championship and the 2006 United Nations World Urban Forum.