Mexico City's residents are being watched by this state surveillance headquarters, designed by architects with a flair for intimidation.

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

The underground mall's skylights look like they could be part of a spaceship.

This hotel is an amazing example of the Escuela Tapatía de Arquitectura movement.

The last home designed in its entirety by noted architect Luis Barragán owes its existence to an impressive jacaranda tree.

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

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

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

This colossal ancient sculpture of the monstrous Aztec rain god has a literally stormy history.

Come face to face with the ferocious visage of the serpent-headed mother goddess of the Aztecs.

These subterranean models show Mexico City's central square during three different eras.

The ruins of the "place of the cloud snake" sit in the middle of an urban environment.

After several moves across Mexico City, these two statues found a home in Mestizaje Park.

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

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

The ruins of the bathhouse used by the ill-fated last Aztec emperor still lie in Chapultepec Park.

Once home to an aristocratic family and a workers' organization, this intricately tiled building now houses a chain restaurant.

This Aztec structure remained hidden until the demolition of a supermarket exposed the lost temple.

Named after a Mexican president, who once lived nearby, this park in a residential Mexico City neighborhood packs a whole lot of history into a small space.

This giant expressionist head crowns a museum devoted to a beloved Mexican leader.

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

This mid-century mural portrays humankind's spiritual and scientific journey.

The outside of this theater is decorated with a Diego Rivera mural that explores the history of Mexico.

This incredible college library is a visual masterpiece of mosaic art. It also looks kind of like a giant boombox.