This house's itty bitty size means no humans allowed.

This magnificent market stands as a poignant symbol of the suffering caused by the Spanish Civil War.

Down this yellow brick road, visitors are treated to toadstool houses and massive mushroom sculptures.

A well-restored ancient archaeology site gives a real feel for life during the Roman age.

Spanish architects used seized Muslim gravestones to rebuild parts of the fortress.

Crumbling remnant of Rio's colonial past tucked behind Corcovado mountain in the neighborhood of Cosme Velho.

This stunning Brazilian library contains the largest collection of Portuguese texts outside of Portugal itself.

Its incredible collections are dedicated to preserving Mexico's film history.

This covert museum showcases booties worn by a rescue dog and slippers owned by Queen Elizabeth II.

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

Hidden for more than a century, the grave of the Conquistador remains forgotten behind these church walls.

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

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

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

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

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

Get a privileged view over Mexico City's Historic Center from a terrace right in its heart.

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

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

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

A series of abstract sculptures pop up from an otherworldly volcanic landscape.

This extraordinary art museum is like a secret world on the edge of Mexico City.

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

A museum in the former home of Marxist revolutionary Leon Trotsky.