These azure waters were thought to lead to the Mayan Underworld.

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

The enigmatic and seldom visited ruins of a Mayan city-state.

Two waterfalls flow down the cliff faces decorated with rare natural basalt columns.

Southern Mexico under the influence of mushrooms, ceremony and celebrity.

The stoutest tree in the world.

This church, buried halfway in lava rock, is all that remains of a Mexican village destroyed by a volcano.

The largest cave shaft in the world is home to thousands of birds and popular with BASE jumpers.

The site of murders and Satanic cult gatherings.

A regular looking rock with an unbelievable history.

Giant Redwood-themed cafeteria operates under the golden rule, "Dine Free Unless Delighted."

Haunting and beautiful trees, doomed to die.

This quirky roadside attraction dives into the many theories surrounding North America's most infamous hairy cryptid.

One of the most unusual geological features, recognizable from a dozen hit movies.

Coastal dunes, site of buried Egyptian movie set and former utopian colony.

A winding path built in secret on the edge of the continent.

A huge musical instrument played by the ocean.

Once thought to be the oldest living tree in the world, Methuselah was germinated before the Egyptian pyramids were built.

Spiral labyrinth hidden in the hills above Oakland, CA.

In the middle of an extremely unforgiving and desolate high desert is the most secret military facility in the world.

The largest drain hole in the world.

The fossilized remains of ancient California redwoods.

A trash dump made beautiful by nature's power.

This massive redwood tree has a hole in the base big enough to drive through.