This sublime architectural marvel is a rare example of an expressionist church.

Copenhagen's celebrated theme park and gardens.

This peculiar lake of pitch is so thick and viscous that one can walk on its surface.

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

This century old flensing port is a remnant of a culture for whom whaling is still legal.

Looking like nothing more than a cartoon deserted island, this tiny sandbar is home only to a single umbrella.

Starting with nothing more than discarded conch shells, one man has built an island/bar that would make Jimmy Buffet jealous.

A natural tidal swimming pool is ringed by bizarrely artistic lava rock formations.

The larger of two volcanic peaks rising out of the crystalline waters of the Caribbean.

One of just five sand-floor Jewish synagogues in the world.

This lake with an inactive volcano underneath is often said to be bottomless.

A violent name for a violent volcano.

Hundreds of pieces of ancient Taíno art cover the walls of this Caribbean cave system.

This trio of Dominican cave lakes comprise a colorful biosphere of natural life.

This mountaintop lake bubbles and steams in a perpetual boil, thanks to its direct link to the Earth's interior.

A hidden tidal pool that transforms into a frothy natural jacuzzi.

This huge pile of volcanic boulders hides a stunning network of secret grottoes.

An abandoned lighthouse located on the cliffs of Barbados.

A Barbados crypt where it's said that the coffins refuse to stay put.

This popular tourist cave was ignored for almost 200 years before being mined into an attraction.

A giant gun barrel in Barbados that once hoped to shoot outer space with science.

Under the desolate and windswept northern coast of Barbados stands a small oasis filled with sea anemones.

A series of magical limestone formations along the coastline of the country island of Antigua.

Washington's iconic carousel has a nice piece of Civil Rights history.