Attractions that can be found in Yellowknife include the Caribou Carnival; Held the last weekend of March each year putting an end to winter in Yellowknife, Canadian Championship Dog Derby; A three day, 150-mile race run on Great Slave Lake ice, part of the World Cup of dog sled racing held at the end of March, Prince of Wales Northern Heritage Centre, Wildcat Caf and Old Town, Aurora Viewing; From September to April, Bush Pilot's Monument, Top of the Rock in Old Town; the Northern version of the CN tower, Diavik Diamond Display and the Yellowknife Cultural Crossroads.