The remains of an Aztec school and various intriguing artifacts lie below a modern cultural center.

This sculpture garden is a serene oasis wedged in the middle of a busy highway.

An archaeological museum at the Aztec pyramid displays signs of the New Fire ritual performed every 52 years.

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

These colonial murals are a fascinating hybrid of Spanish and Indigenous aesthetics.

Psychedelic murals coat the inside of a nondescript research library.

The conquistador's former fortress is the oldest preserved colonial building in the Americas.

The ruins of a former sanctuary for elite Aztec warriors.

This ancient structure was built by a mysterious civilization that was largely destroyed by a volcanic eruption.

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

These spectacular, symbolic serpents lie within the shadow of the Great Temple.

These enigmatic columns tower over the ruins of an ancient Toltec city.

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

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

An extravagant 18th-century fountain built with bits of broken ceramic.

Detailed miniature models of iconic landmarks in Mexico and around the world.

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

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

The burial place of some of Mexico's most prominent residents is full of macabre stories and hidden masonic symbols.

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

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

Artist's eccentric property excessively decorated with found objects and work of his own.

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

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