Places sadbread99 Wants to Go

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

The winter home of millions of migrating monarch butterflies.

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

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

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

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.

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

66,000 pieces of art, donated by one of the world's richest men.

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

Part bookstore, part café, and part forest.

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

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.

A gargantuan crystal kingdom.

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

Extraordinary sculpture garden created by an eccentric English poet.

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

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

An Aztec snake god has taken the material form of an apartment complex.

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

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

This isolated community does not want you to visit.