History is on display in this hall, which has served as the seat of city government for centuries.

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

This museum houses two of Mexico's most impressive Aztec monoliths.

It's believed this golden brick is part of the legendary lost Aztec treasure.

This colossal ancient jaguar sculpture was used as a vessel for the hearts torn from sacrificial victims.

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

The turquoise-studded skull of a long-dead Aztec man sits within Mexico City’s Museum of Anthropology.

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

Diego Rivera hid various people and symbols in his first large-scale mural project.

The unique collection of gifts includes braids of human hair, a spoon, and a Virgin made of bread.

The most complete statue of this Aztec god sits a top a throne carved with images of hallucinogenic plants.

The unique collection often goes unnoticed by visitors focused only on the archaeological objects.

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

Many people don't realize there’s a lot going on in—and below—the world’s tallest triumphal arch.

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

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

Mexico City's largest market contains a Willy Wonka-esque wonderland.

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

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

The famous artist couple lived and worked here, in two different houses separated by a bridge.

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

This iron and wood Civil War city-ship was the first vessel to be sunk by an electrically detonated torpedo.

The second-largest ceremonial mound in the United States is an artificial hill that is loosely shaped like a pentagon.

Florence’s mother built a stairway down to her daughter’s coffin so she could comfort her during storms.