St. Helena is a remote island located in the South Atlantic Ocean, about 1,200 miles west of the coast of Africa. Jamestown is the main city and capital of St. Helena, as well as the island's main port.St. Helena is famous for being the place of exile of Napoleon Bonaparte, who was confined there from 1815 until his death in 1821. The island has a long and interesting history, having played an important role as a port of call for ships sailing between Europe and Asia in the 16th and 17th centuries.Jamestown, located along the northwest coast of St. Helena, is a small town with a population of about 700 people. The town has many historic buildings, including St. James Church, built in 1774, and Rupert Castle, built in 1661. Jamestown is also famous for its stairs, which descend from the town level down to the harbor, a length of about 700 steps.