One of Monterrey's oldest buildings is perched atop a hill boasting impressive views of the city.

This 16th-century church now has a heavenly second life as a cultural hub of Pátzcuaro.

This subterranean passage reveals the city's mining history as well as its legendary terrors.

An island graveyard with spectacular views of the Caribbean.

This foreboding building was the headquarters of the terrifying Spanish Inquisition in Mexico.

A Mexican Romeo-and-Juliet-esque legend has given this super-narrow alleyway a reputation for romance.

CDMX's home for the world's culinary delights.

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

Inside this mountain lies several kilometers of breathtaking caves.

A Lovecraftian altar of nightmarish bronze chairs sits ominously on a boardwalk in Puerto Vallarta.

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

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.

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

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

Extraordinary sculpture garden created by an eccentric English poet.

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

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.

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

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

Conspiracy theories and occult legends surround this mysterious natural rock formation.