High Knoll Fort

High Knoll Fort is a redoubt-style fort of the English East India Company on Saint Helena, an island and British overseas territory in the South Atlantic Ocean. High Knoll is 584 metres above sea level and is approximately one mile south of historic Lower Jamestown. Reopened on 18 December 2010, it is now a tourist attraction for visitors, especially those on the tourist ships that come in the summer.

It looms over Jamestown, and was built to assist in defending the island against potential French invaders, being a redoubt for the islanders. The original fort was built in 1799 as a circular tower, sometimes referred to as a Martello tower, and along the lines of the tower at Simon's Town in South Africa. The purpose of the tower was to protect the rear approaches to the battery at Ladder Hill. The High Knoll tower was incorporated into the present structure, which dates from 1874, when the Royal Engineers rebuilt it.

Source: Wikipedia