A barbarous band of serpents guard the bases of these Aztec temples.

This ancient structure was built by a mysterious civilization that was largely destroyed by a volcanic eruption.

This colossal ancient sculpture of the monstrous Aztec rain god has a literally stormy history.

One of the few places where you can visit a cenote and Maya ruins at the same time.

A neo-Gothic temple in central Mexico featuring a labyrinthine network of crypts.

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

Huge hole looks down onto an underground beach populated with sea lions.

These haunting ruins of a 700-year-old Prehispanic city have witnessed centuries of wars and massacres.

The ruins of an ancient temple to the Aztec wind god discovered in the middle of a metro station.

The singular ruins of a mysterious lost city.

The stoutest tree in the world.

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

Inside this mountain lies several kilometers of breathtaking caves.

A disquieting Aztec sculpture displays hundreds of stone skulls representing the victims of human sacrifice.

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.

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

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

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

The winter home of millions of migrating monarch butterflies.

A unique walk through hundreds of cactus plants, including some that stretch over 8 feet tall.

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

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

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