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

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

A uniquely robust and historic look at Mexico's omnipresent dance with Death.

An elaborate Mayan city shrouded in alien conspiracy revealed the tomb of Pacal the Great.

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

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

A church dedicated to the Mexican skeleton saint.

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

Part bookstore, part café, and part forest.

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

Extraordinary sculpture garden created by an eccentric English poet.

Superstitious? Discover the witchy side of Mexico through its largest esoteric market.

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

A secret climbing tree hides along the side of a Costa Rican road.

One Costa Rican island is so beset by illegal shark poachers that the local rangers have built an entire bridge with their confiscated gear .

These mysterious ancient stone spheres were created by a civilization lost to time and are now mostly lawn ornaments.

This neon blue river gets its color from a unique mix of bacteria and volcano minerals.

Sloth rehabilitation center in the jungle of Costa Rica.

Discover the magic in the mundane in Iceland's Museum of Everyday Life.

A vintage video game wonderland in downtown Reykjavik.

Iceland's tribute to its thankless civil servants.

This museum dedicated to divination also honors a local 10th-century prophetess.

Cairns built to bring travelers good luck stretch across the land like miniature stone mountains.

Iceland's first pagan temple in 1,000 years is underway in Reykjavík.