Toronto, the capital of the province of Ontario, the fourth largest in North America, is a main Canadian city along Lake Ontario’s north-western shore. The city covers a range of 630 square kilometres with a maximum north-south distance of 21 kilometres and a maximum east-west distance of 43 km. It has a 46-kilometre long waterfront shoreline, on the north-western shore of Lake Ontario. The city is home to the Toronto stock market, the headquarters of Canada's five largest banks, and therefore the headquarters of the many large Canadian and multinational corporations. Its economy is very diversified with strengths in technology, design, financial services, life sciences, education, arts, fashion, aerospace, environmental innovation, food services, and tourism. The Toronto Zoo has more than 5,000 animals of over 460 diverse species. The Art Gallery of Ontario comprises a huge collection of African, Canadian, European, and contemporary artwork, and also plays host to exhibits from museums and galleries all around the globe. The Gardiner Museum of ceramic art is the only museum in Canada fully keen to ceramics, and the Museum's collection contains more than 2,900 ceramic works from the Americas, Asia and Europe. The city also hosts the Bata Shoe Museum, the Ontario Science Centre, and Textile Museum of Canada. The Royal Ontario Museum maybe a museum of world culture and explanation.