The development of this cliffside waterpark is representative of Mexico's history of co-op tourism developments.

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

At least seven hues of blue and turquoise make this freshwater lagoon unique.

The singular ruins of a mysterious lost city.

Cool down and fill up after visiting Teotihuacán at this bar and restaurant in a deep, underground cave.

A graceful natural rock formation stands astride the point where the Gulf of California meets the Pacific Ocean.

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

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

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

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

Clap your hands at the base of the pyramid, and the song of a sacred Mayan bird will echo through the air.

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

This fantastical house shaped like a seashell brings aquatic design to architecture.

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

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

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

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

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

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

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

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

This pebble beach is so beautiful that taking its rocks is against the law.

Once a menacing challenge for trailblazers, this trail is now the most scenic drive in Utah.

A working cattle ranch with remarkably well-preserved prehistoric petroglyphs and ancient ruins.