On this last day of abandoned islands week, let's come back to America for a gorgeous abandoned island -
Pollepel Island, New York
This island in the Hudson was once considered haunted by the Native People. It was used in defense during the Revolutionary War. A Scottish businessman, David Bannerman, purchased it and began to build a Scottish castle on the island in 1901. While it was still under construction in 1918, Bannerman passed away. The island is now in a trust and under care by the parks service. It had undergone a fire in the 1960s that damaged the castle. It is now considered off-limits.