The capital of Alberta, located at the center of the province, was originally established as a remote trading post by the Hudson Bay Company in 1795. From then on, Edmonton experienced relatively little growth until the Klondike Gold Rush of 1897. Overnight, Fort Edmonton became the supply area for the thousands of gold seekers heading up the treacherous Klondike Trail to the Yukon. The discovery of oil in the Edmonton area in 1947 assured the city of its future, making it one of the fastest-growing metropolitan areas in Canada. The spacious well-planned city is also famed for its huge parks, which sit on the banks of the North Saskatchewan River. Edmonton’s love affair with its past is reflected in Canada’s largest historical park, Fort Edmonton Park. This is a complex of reproductions of the city’s frontier days and reaches its apogee in the annual ‘Klondike Days’ extravaganza, held each July, when Edmontonians relive the days of the Gold Rush. West Edmonton Mall is the largest shopping mall in the world, with theaters, restaurants, nightclubs, amusement areas (including a miniature golf course, ice rink, swimming pool, waterpark and amusement park), aviaries, aquariums and museums. Edmonton also boasts Fantasyland, the world’s largest indoor amusement park, and Canada’s largest planetarium, the Space & Science Center which also has an IMAX experience and Challenger center. There are several theaters and art galleries. On a clear day, an estimated 6500 sq km (2500 sq miles) of Alberta can be seen from Vista 33 at the Alberta Telephone Tower. The Ukrainian Cultural Heritage Village is just outside the city. Other attractions include the Valley Zoo to the west of Edmonton and the John Janzen Nature Center nestled in the River Valley Park.