Time-Lapse: The Skies Over Dry Tortugas

How have I never heard of Dry Tortugas National Park until now? It's a little over 100 km west of Key West, Florida, in the Gulf of Mexico. It's pretty remote, accessible only by boat or seaplane, and has an interesting history. It's the location of Fort Jefferson, a huge brick fortress that was constructed over a period of 30 years in the 19th century but never completed. It was built to protect the busy waters at the entrance to the Gulf, and was also a prison --Samuel Mudd was sent there, con...