A swing to dangle you off the very edge.

This city square is home to Amsterdam's oldest church and a statue honoring Dutch sex workers.

This massive blockhead sculpture hides an entire library.

A giant Australian fruit and tropical farm.

One of the first big sculptures anywhere in Australia.

Giant fruit signaling the entrance to a tropical paradise.

Home of the "true" equator.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

Most-visited and most-photographed slot canyon in the American Southwest.

A Roman-style column in Oregon hides a spiral staircase inside.

A massive sea stack famous for its appearance in The Goonies.

The chefs at El Diablo use heat generated by an active volcano to cook the food.

Partially collapsed lava tube and cave system complete with concert hall, underground pond, and unique albino crabs.

A roaring, awe-inspiring double cascade of icy water flows through woodland Oregon like something out of a Tolkien novel.

Nine limestone rock stacks on Australia's "Shipwreck Coast."

A 10 million-ton rock once worshiped by the Tahamies Indians, accessed by an astounding staircase.

The deepest lake in the United States, and once the site of epic destruction that lives on in legends.

The ancient tomb acts as a calendar that keeps perfect time.

The lake that fills and empties itself at random.

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

Every equinox this Maya pyramid puts on a spooky ancient light show.

No telescopes, no power, no gift shop: The Observatory of Chichen Itza, one of the world's oldest observatories, takes astronomy back to basics.

Guatemalan womanizer, venerated during Holy Week.

Central America's deepest lake is actually a volcanic caldera, surrounded by three volcanoes.