The ruins of an ancient city built by Mayan traders is centered around a temple of a sacred feathered serpent deity.

Concrete construction materials turned into a fashionable capsule hotel in rural Mexico.

The stoutest tree in the world.

Centuries-old bridges grown from tangled roots.

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

The abandoned "Ghost Mansion" was left to decay in the mountains of Northern Italy.

Kitschy horror displays now fill the house where some very real serial killing took place.

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

Medieval torture techniques with a modern conscience.

Horrifically creative torture devices and shame punishments line the walls of this chilling museum.

A display of torture devices used in the Spanish Inquisition and other scourges of medieval Europe.

Crumbling pyramids and temple ruins stand within the shadow of this sacred butte.

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

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

A flooded Mexican cave that hides a river beneath the water.

Underwater art project will double as a massive artificial coral reef to help regenerate the damaged ecosystem.

A lovers' beach, tucked below the surface of the island, provides a safe haven for romance.

The winter home of millions of migrating monarch butterflies.

High atop a Mexican rainforest mountain, this ancient pyramid once drew pilgrims countries away.

Built 1,500 years ago, this abandoned Mesoamerican city is surrounded by a natural wall made of outstanding rock formations.

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

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

Mexico's first public cable car soars over the congested streets outside Mexico City.

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