This mine is home to the largest man-made hole in Europe.

This viaduct serves as a reminder of World War II.

Largest illuminated advertisement sign in the world.

A century-long search for a church that was never there.

This "floating railway" is one of the world's oldest monorail systems.

Commercial airplanes land mere feet over the heads of sunbathing beachgoers on this tiny island.

Originally used to sell brandy, the bull-shaped billboard became an iconic symbol of Spain.

This historic electric train has operated with regularity since the early 1900s.

Wander among free-roaming storks at the sanctuary that helped save them from local extinction.

The remnants of an abandoned, 19th-century gold mill along Aruba's rugged northeastern coast.

The floor of the oldest surviving synagogue in the Americas is entirely covered in sand.

A sanctuary for sickly, stray, or wounded donkeys.

The shortest in the world, this landing strip stretches a mere 1,312 feet before steep cliffs on either end plunge into the Caribbean.

This historic spot was where America's involvement in the Vietnam War officially came to an end.

This museum has a most unusual location: inside a giant, three-headed elephant.

Hindu temple of the dead home to hundreds of long-tailed macaques.

Take a hidden path to the mouth of the cave to watch millions of bats swarm at sunset.

One of the most spectacular canyons in the world.

The walls of this sandstone outcropping are covered with 2,000-year-old artwork.

An 18th-century hideout became a permanent and ongoing residence for one Lesotho tribe.

This tower once served as a radar station during the Cold War.

A memorial to the soldiers who died in the bloody battles to control Verdun in World War I.

Bloodstains can still be seen in this medieval church where two medics saved lives on D-Day.

A memorial for a young woman and her ghost, which are claimed to have caused countless deathly shipwrecks.