As the world's most ethnically diverse city, Toronto also has distinctive shopping districts and markets that offer a wide range of unique shopping experiences. Downtown Toronto offers museums and art galleries galore including The Royal Ontario Museum (ROM) , Canada's largest museum and one of the top 10 in the world; the Art Gallery of Ontario (AGO), Canada's oldest art gallery and the Ontario Science Centre. At the northeast end of the city, Canada's largest zoo, the Toronto Zoo, features more than 5,000 animals in their natural environment. Just north of the City, Canada's largest theme park, Paramount Canada's Wonderland, features more than 160 attractions and 50 rides in a thrilling environment.