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

The jewel of the museum is a rare tumulus, a funeral decoration from the 18th century.

A wall of this old hotel was decorated with drawings made of pebbles during its construction.

This "cursed house" features secret rooms, hidden vaults, and dark escape tunnels.

A skeleton without arms watches over the side door of one of the most beautiful baroque temples in Mexico.

This centuries-old mine remained hidden beneath a hotel bar until 2013.

A jaw-dropping "megalibrary" that turns book-browsing into a geometric adventure.

The museum houses "the most studied meteorite in history," among other geological oddities.

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

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

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

The world's tallest carillon is located at the top of this skyscraper in Mexico City.

The collection of intricate sculptures includes one carved from a mammoth's tusk

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

The former headquarters of Mexico's Secretariat of Public Education now houses a muralism museum, including Diego Rivera's first large-scale mural project.

Part bookstore, part café, and part forest.

This clock was gifted to Mexico as a show of gratitude for its long history of welcoming Arab migrants.

A series of mosaics in Mexico City's Historic Center celebrate the Basque Country's "eighth province"—its diaspora.

Psychedelic murals coat the inside of a nondescript research library.

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

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

The official Presidential Residence of Los Pinos became an emblem of Mexico's opulence and presidential corruption.

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

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