Hike deep into the woods to explore this Gilded Age masterpiece.

Spies, love letters, and ghost stories have all left their mark on this home-cum-museum.

The ruins of an abandoned 18th-century town that is slowly being reclaimed by the forest.

An abandoned Victorian-era mill in the middle of modern Manchester.

Designed by famed 20th-century architect Cass Gilbert, the future of this abandoned 1908 rail station is currently in limbo.

An abandoned 19th century quarry in the middle of the woods, remade by unnamed wanderers into a massive series of rock thrones.

A former copper mine which became a truly unsuccessful prison.

Sail through this subterranean show cave that is home to a legend that would go on to name nearly everything around it.