The ruins of this Thomas-Jefferson-designed mansion have been left to crumble since the Christmas Day they burnt down.

An alternate history park where the Union Army loses the war... to dinosaurs.

Nine of the very few concrete ships ever made in the U.S. are beautifully decaying off a Virginia pier.

The highest point in Virginia can only be reached by passing through ponies and flowers.

Paranormal investigators claim this abandoned asylum is the most haunted spot in the eastern U.S.

Heron, whitewater rapids, and urban industrialism all add to the beauty of this concrete nature walk.

An organ located deep within a cave, whose "pipes" are the geological features of the cave itself.

Exact replica of the ancient monument, but much, much lighter.

A railroad tunnel that, upon its completion, was considered one of the engineering marvels of the modern world.

A former mental hospital founded in the 1930s by a eugenicist who advocated for the forced sterilization of patients.

The flower-shaped temple in Virginia aims to transcend the boundaries of the world’s religions.

Outsider art meets paleontology at this roadside reptile repository.

This maze-like slot canyon is a unique gem within an already fascinating geological area.

A 300-yard long natural tunnel runs through a ridge deep in the Appalachian Mountains.

A sacred site for Native Americans surveyed by George Washington and owned by both King George III and Thomas Jefferson.

The remains of a failed attempt at medieval nerdery are hidden deep in the woods of Virginia.

Giant busts of 42 U.S. presidents are sitting in a field in Virginia.

A music-filled, booze-soaked oasis in the desert.

These four islands right offshore have waterfalls, colorful lights, fancy buildings, and a secret purpose.

This symbol of peace is appropriately positioned overlooking the Pacific Ocean.

America's most famous piece of self-built architecture.

A Swedenborgian glass church surrounded by redwoods sits perched atop a massive landslide area.