During prohibition, corrupt city officials ran drinking dens under the streets of Downtown Los Angeles.

The only thing stranger than stumbling onto these philosophical musings is the story of the homesteader who created them.

Crumbling pink walls and murder memorials preserve the pioneer history of Joshua Tree.

Burping, gurgling geothermal mud pots by the Salton Sea.

Huge otherworldly domed rocks on the shore of a deadly lake.

One man's fulfilled dream of living on an artificial island made of recycled plastic bottles.

A magical sinkhole on the Yucatán Peninsula is adorned with mini waterfalls and hanging vines.

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

A dark tunnel leads to a striking white crater that seems to be from another planet.

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

A museum in the former home of Marxist revolutionary Leon Trotsky.

A hidden treasure of an abandoned city lies deep in the jungles of Campeche, Mexico.

This beautifully deceptive waterfall is something far different from what it appears to be.

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

The ruins of an ancient Mayan city, beautifully preserved and only accessible by boat.

A 500-year-old series of tunnels long believed to be folkloric was uncovered beneath the streets of Puebla.

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

Mexico's astounding mummy museum with "the world's smallest mummy."

Twelve natural mummies are displayed in the crypt of this former monastery school.

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

An elaborate Mayan city shrouded in alien conspiracy revealed the tomb of Pacal the Great.

A uniquely robust and historic look at Mexico's omnipresent dance with Death.

A church dedicated to the Mexican skeleton saint.

An Aztec temple, the largest man-made pyramid in the world, sits buried in earth with a Spanish church set on top.