A giant "X" symbolizes the blood spilled from the brutal Juárez drug wars.

This abandoned convent keeps the tomb of a legendary beheaded princess.

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

Three sinkholes filled with warm, crystal-clear water reached by a horse-driven cart on an old train track through the jungle.

A small pack of an ancient, hairless breed of dog once believed to guide souls through the underworld lives on its grounds.

This "City of Books" holds a museum, library, and the complete personal book collections of five of Mexico's greatest thinkers.

A historic cemetery doubles as a museum containing hundreds of unique tombs sculpted by a single artist.

These unusual paintings give thanks to the saints and deities who granted people favors and miracles.

The Mexican painter Diego Rivera created this unusual museum to display his collection of pre-Hispanic artifacts.

This small museum holds a treasure trove of ceramic figures that are either a hoax or proof of dragons, aliens, and dinosaur riders.

Iconic red and white plaques show the creative names invented to navigate the city streets.

These biodiverse university gardens form a green oasis amid the urban chaos of Mexico City.

On a cornerstone of the City Museum is the head of a monstrous serpent stolen from an Aztec pyramid 400 years ago.

A 16th-century monastery boasts a lush array of plants native to Mexico’s most biodiverse region.

Things roll uphill on this Mexican street that seems to defy gravity.

This historic cemetery built for victims of the epidemics that swept Guadalajara is shrouded in macabre tales.

A mysterious pillar in an ancient burial chamber is said to predict how long you have to live.

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

These strikingly colorful paintings were created by a mysterious Mesoamerican civilization.

A disquieting Aztec sculpture displays hundreds of stone skulls representing the victims of human sacrifice.

A hacienda that features all things uniquely Yucatán.

This strange sculpture of a menacing skull surrounded by sun rays was discovered at the foot of the Pyramid of the Sun.

Mexico's largest collection of masks is found in the ruins of an abandoned convent.

Psychedelic murals coat the inside of a nondescript research library.