Every equinox this Maya pyramid puts on a spooky ancient light show.

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

The stoutest tree in the world.

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

An island filled with hundreds of hanging, decomposing, decapitated dolls.

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

Diego Rivera's massive tiled fountain and failed infrastructure project.

The only castle in North America to ever house European sovereigns.

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

Climb through the life of a Mexican hero as you ascend a 130-foot statue.

Extraordinary sculpture garden created by an eccentric English poet.

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

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