Old-fashioned knowledge and modern engineering create the world's only rotating boatlift.

One of the oldest scientific gardens in Britain, containing more than 13,302 plant species in its core collection.

A statue in the heart of Edinburgh honors a bear that served in the Polish military during World War II.

Monty Python fans will recognize this abandoned mine as the Cave of the Killer Rabbit of Caerbannog.

The fountain marks the area where hundreds of accused witches were burned at the stake.

This striking art museum holds an amazing series of curiosity cabinets.

Inside a humble hangar is some of the best roller derby the world has to offer.

At this Denver landmark, the meals are compulsory, the sopapillas are complimentary, and the insanity is everywhere.

The longest continuous lava tube in the continental U.S. offers 2.5 miles of dark explorations for the adventurous.

An extraordinary mixture of natural beauty and man-made phenomena.

This coastal rock formation resembles a churning cauldron at high tide.

Ride a mechanical corn dog at the alleged birthplace of America's favorite deep-fried wiener.

This nature center has one of the largest collections of native raptors in the Pacific Northwest.

On the Oregon coast is a natural hole that seems to be draining the sea.

According to legend, this rock represents a young girl trapped by an evil ocean spirit.

The final resting place of 121 victims of the RMS Titanic, 42 of which may never be identified.

A beautiful waterfall and beach where precious stones are plentiful.

The highest tides in the world come in and out here twice a day, allowing you to essentially walk along the ocean floor.

Experience the magic (and science) of a camera with this giant structure that allows you to enter inside the camera.

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

A memorial to the first person killed by a motor vehicle in the Western Hemisphere.

The name of this famed hospital was once a byword for the horrors of medical and psychiatric care.

A Manhattan courthouse hides a small but scathing memorial to Holocaust injustice.

Forget Hollywood, one of the biggest stars in the world can be found in Roanoke, Virginia.