Located in North America, Canada is one of the Commonwealth realms with the King of the United Kingdom as its monarch. In cities such as Toronto and Vancouver, visitors can enjoy the vibrancy created by a diverse mix of cultures, including indigenous peoples and immigrants, in sophisticated cityscapes. The region is also blessed with overwhelming natural beauty, including the Rocky Mountains and Niagara Falls, and a number of national and state parks are registered as World Heritage sites. Luxurious outdoor sports and hiking to experience the spectacular nature are also popular.