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

A fairytale-like grove with a crystal-clear spring bubbling under the shade of a massive ancient tree.

The singular ruins of a mysterious lost city.

The winter home of millions of migrating monarch butterflies.

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

An indigenous take on European design creates a stunning visual overload.

What better place to learn about the beautiful game than an actual soccer ball-shaped building?

The realistic reptiles lurk along the side of a highway.

These strikingly colorful paintings were created by a mysterious Mesoamerican civilization.

In the Valley of Morelos lies a mysterious Olmec site with signs of jaguar veneration.

These enigmatic columns tower over the ruins of an ancient Toltec city.

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

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

This ceremonial Mexican square looks as though it belongs in a science fiction movie.

Get a close look at the gigantic remains of long-extinct mammoths.

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

The unique collection of gifts includes braids of human hair, a spoon, and a Virgin made of bread.

Frida Kahlo's childhood home, now a museum of her life and works.

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

Its incredible collections are dedicated to preserving Mexico's film history.

This underground museum highlights the history of Mexico City's subway system.

A jaw-dropping "megalibrary" that turns book-browsing into a geometric adventure.

Its exhibits are dedicated to educating the public about state terrorism in Mexico.

These subterranean models show Mexico City's central square during three different eras.