This remote island village was in danger of depopulating completely until a tunnel was built to connect it to the rest of the world .

A winding, blood-red tunnel of hardened lava navigable by foot.

This tiny museum's sizable collection is jammed into a former underground public toilet.

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

400-year-old garden, restored to beauty.

Climb inside an iron crystal magnified 165 billion times its normal size.

The quirky - and private - constructions of a secluded artist depict the house of God.

A breathtaking canyon offers stunning views and frightful pathways through an ecological paradise.

A local artist created this giant rippling wave.

A gravity-defying "devil's bridge" that has a surprising architectural feature for its stability.

The sister plane of the C-123 shot down during the Iran-Contra Affair has found a new purpose in retirement.

An abandoned water sports stadium that has become a haven for graffiti and decay.

For divers and music lovers, the Florida Keys' Underwater Music Festival provides the best of both worlds.

These mysterious ancient stone spheres were created by a civilization lost to time and are now mostly lawn ornaments.

A bronze sculpture of Lenin’s likeness outside Havana surrounded by 12 human figures in solidarity with the Bolshevik Revolution.

Send a postcard while vacationing with Satan.

An ancient system of freshwater caves filled with animal bones, including that of species long-extinct.

An enormous, 30-story-deep hole in the middle of Guatemala City.

Fish raining from the sky are the cause of a yearly celebration in this small Honduran town.

The remnants of an archaeological camp stand within Tikal National Park.

The world's widest single drop waterfall, and the two men who legend says went over its edge in a boat.

This niche museum devoted to ancient religious artifacts is shaped like the very thing it displays.

Rusting, graffiti-covered tanks litter the beach of this island, once used by the U.S. military for target practice.

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