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

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

Inside a busy metro station, an impressive mural depicts the prehispanic city of Tenochtitlán.

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

The striking jade death mask of an ancient Maya king is displayed in a replica tomb in Mexico City.

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

This ancient jade mask depicting the Zapotec bat god was found in the ruins of the pyramids of Monte Alban.

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

Gilded heaven for philatelists and architecture freaks, still in full working order despite sitting atop tremulous ground.

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

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

The splendor of this 17th century golden chapel has led it to be called the "eighth wonder of the world."

Space-age minarets towering over Islamabad.

A 17th-century mosque that was used for war more than worship.

These stairs were built to accommodate royals mounted on elephants.

Tibetan-influenced mountain fortress in Northern Pakistan.

The place that allegedly inspired James Hilton's depiction of Shangri-La.

Meet manatees face-to-face at this zoo for native species.

A perfect circle of 24 mysterious holes dates back to prehistoric times.

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

This monolithic slab of art metal crowns a German slag heap.

The Bauhaus-style former industrial complex is considered the world's most beautiful coal mine.

The monumental home of Prussia’s eccentric "Cannon King."

A museum dedicated to the history and exploration of both popular music and science fiction.