First organized in the year 1953, Canadian Tulip Festival is the world's largest Tulip shows. Held every year in the month of May, this 18 day festival is witnessed by more than half a million visitors. The festival is held in Ottawa and Gatineau. The best place to see the Canadian Tulip festival is the Commisioner's Park on the sides Dow's Lake. Nearly 300,000 tulips are displayed in the park itself. Although you can find the tulips planted throughout the cities.