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

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

The meteor that sealed the fate of the dinosaurs landed at this site, one of the largest impact craters in the world.

If you can look past the nearby sewer pipes, this urban sinkhole grotto is a mini-paradise.

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

This old-school café is famous for serving coffee, chilaquiles, and the Cuban Revolution.

The jewel of western Mexico's archaeological legacy is this tiered circular pyramid now covered in grass.

The burial place of some of Mexico's most prominent residents is full of macabre stories and hidden masonic symbols.

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

These biodiverse university gardens form a green oasis amid the urban chaos of Mexico City.

The splendor of this 17th century golden chapel has led it to be called the "eighth wonder of the world."

This crumbling Art Deco movie palace in Mexico City has been abandoned for two decades.

A scientific repository of goiters, boils and other ailments throughout Mexican history.

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

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

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

The winter home of millions of migrating monarch butterflies.

Explore the atmospheric ruins of an abandoned convent in the dense forests of Mexico's first national park.

Meant to be one of the most extravagant hotels in the world, now an eerie, abandoned architectural gem in Mexico City.

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

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

No telescopes, no power, no gift shop: The Observatory of Chichen Itza, one of the world's oldest observatories, takes astronomy back to basics.

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

The famous artist couple lived and worked here, in two different houses separated by a bridge.