Sydney is the capital city of New South Wales, Australia and is located on the southeast coast. It has a long history dating back 30,000 years and was formally established as a British colony in the 1820s. Sydney has a temperate climate with warm summers and mild winters. Major forms of transportation include roads, trains, and Sydney Airport. Popular tourist attractions are the Sydney Opera House and Sydney Harbour Bridge, and the city is also a leader in Australian sport and education.