London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.

Catacombs turned marketplace.

See massive fossils that are over 200 million years old in northeastern Arizona.

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

Half-sized replica of the Leaning Tower of Pisa built to honor Galileo.

Strange physical sensations and optical contradictions keep visitors coming back for more.

The land is home to swimming ponies and a legendary 18th-century treasure.

The rusting remains are visible sticking out of the waters of the Delaware Bay.

The site of the climactic scene from the classic horror film is now a historic landmark.

A local farm's collection of unusual structures from a now defunct storybook amusement park.

A island reachable by a causeway at low tide is possibly one of the earliest Western European locations to be identified in text.

A fantastic castle rumored to be the birthplace of King Arthur.

Part museum, part piece of Arthurian-inspired history, this stately hall attracts King Arthur fans from miles away.

The largest greenhouse in the world is home to over one million types of plants.