One of the last active volcanoes on the Eastern seaboard.

The home of pigs, snakes, chameleons, and the alleged largest bunny in the United States.

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

This 29-ton granite ball spins around at the slightest touch thanks to a scientific phenomenon.

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

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.

A floating museum that was sunk by a flood and left to rot in the tides.

A subterranean haunt where wine and homemade biscottis are always on the menu.

The oldest bar in Missouri is hidden within a limestone brewery cellar more than 50 feet underground.

This mosaic-covered bar is brimming with curated curios.

The Old Courthouse takes visitors on a captivating trip through St. Louis' timeline.

An unexpected but incredible collection of wildlife dioramas spanning rainforests, swamps, forests, and plains.

Entombed in this strange, white stone hill are the deadly remains of radioactive weapons production.

In the St. Francois Mountains in the Ozarks at 1,772 feet above sea level, Taum Sauk Mountain is the highest (and possibly oldest) peak in Missouri.

Giant granite rocks standing end-to-end like a train of circus elephants.

A geological oddity formed by two rivers carving out a mass of limestone on both sides.

This is not your typical jungle gym.

400 million-year old limestone caverns nestled in the Ozarks served as shelter and a hideout for cultures throughout North American history.

Erosion and time have created a naturally-formed water park.

The world's largest man-made underground caverns offer unparalleled underwater wonders.

This abandoned prison castle has become an imposing gallery of graffiti art.

Peak named for an old man who liked to run in the nude.