Surreal riveted sea forts once protected the Kent shores from German attack.

Huge concrete structures designed as an early warning system for Britain to detect enemy aircraft.

An avant-garde artist is survived by his seaside garden.

Try not to get slimed in Tribeca.

A terrific purveyor of natural history objects and curios.

At 207 feet, one of the world's longest continuous escalators.

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

The "lovely red Vega" of the legendary record-settling pilot.

"X" marks the spot of an echo chamber in the middle of a plaza.

South Carolina's last remaining slavery auction house is now a museum devoted to its own tragic history.

A building so large that it has its own weather.

The museum chronicling a treasure hunter's dream, fulfilled.

A historic presidential getaway on the continental United States' southernmost island.

The former home of the Nobel Prize-winning American writer is now home to dozens of six-toed cats.

A monument celebrating the idea of reaching inaccessible places.

Over 120,000 curious objects that have shaped our modern world.

This disused Cold War bunker has been restored to all of its early 60s glory.

The celebrated eyesore created by starry-eyed sweethearts.

The unsettling remnants of a torn down movie set lies nearby the ruined location of the actual Płaszów Labor Camp.

Legacy of the earthquake that nearly wiped Lisbon off the face of the Earth.

Real bones which are said to have belonged to a Polish dragon.

These stark white cliffs were spat up by the sea and are slowly being retaken by it.

Famously misunderstood wonder of the ancient world

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