Ascension Island, grouped with St. Helena and Tristan de Cunha islands, is one of fourteen British ‘overseas territories’. It is the tip of an underwater volcanic system in tropical mid-Atlantic, naturally arid with almost no native vegetation, and was once home to millions of sea birds.
The British were the first people to settle there in 1815 and Charles Darwin visited in 1836, but it is now dominated by a USA military airbase along with various tracking, transmitting and listening stations.
There is so much that is strange about this island, as this BBC article explains. It is not currently possible to fly to Ascension as a tourist other than from Johannesburg via St. Helena once a month and with a valid entry permit.
(Top image: Jerrye & Roy Klotz MD at Wikimedia Commons / CC BY-SA 3.0)