Canberra's design is influenced by the garden city movement and incorporates significant areas of natural vegetation. Its design can be viewed from its highest point at the Telstra Tower and the summit of Mount Ainslie. Other notable features include the National Arboretum, born out of the 2003 Canberra bushfires, and Lake Burley Griffin, named for the city's architects. Highlights in the annual calendar of cultural events include Floriade, the largest flower festival in the Southern Hemisphere, the Enlighten Festival, Skyfire, the National Multicultural Festival and Summernats. Canberra's main sporting venues are Canberra Stadium and Manuka Oval. The city is served with domestic and international flights at Canberra Airport, while interstate train and coach services depart from Canberra Railway Station and the Jolimont Centre respectively. City Interchange is the main hub of Canberra's bus and light rail transport network.