Tasmania's capital city of Hobart was first settled in 1803 as a penal colony, and a notorious one at that. Substantial remnants remain, from prison facilities to the graceful stone bridges built by convicts. Prosperity came from its large harbor fed by the Derwent River and burgeoning commercial enterprises involving agriculture, forestry, mining, and whaling. Today its harbor front and historical attractions are a big draw, with cruise ships docking just a 10-minute walk from the city center.