Canberra is the capital city of Australia. With a population of over 345,000, it is Australias largest inland city and the eighth-largest city overall. The city is located at the northern end of the Australian Capital Territory (ACT), 280 km (170 mi) south-west of Sydney, and 660 km (410 mi) north-east of Melbourne. A resident of Canberra is known as a Canberra. The site of Canberra was selected for the location of the nation's capital in 1908 as a compromise between rivals Sydney and Melbourne, Australia's two largest cities. It is unusual among Australian cities, being an entirely planned city. Following an international contest for the city's design, a blueprint by the Chicago architects Walter Burley Griffin and Marion Mahony Griffin was selected and construction commenced in 1913. The Griffins' plan featured geometric motifs such as circles, hexagons and triangles, and was centred around axes aligned with significant topographical landmarks in the Australian Capital Territory.