If you’ve ever seen a picture of Machu Picchu, then you’ve seen a picture of Huayna Picchu—you just didn’t realize it.

Preserved Inca city and site of the last Inca stronghold against the Spanish conquistadors.

The stones of this Incan wall complex fit together so well you couldn't fit a piece of paper between some of them.

Built on the remains of one the Incas’ most important gathering spots, this square keeps the spirit of a fallen empire alive.

A Christian monastery stands on what was once a holy Incan temple.

A huge, bustling local market in Panama City.

This Costa Rican chapel is the most metal church in the world, literally.

Balanced rock sculptures pay tribute to a murdered conservationist and his pioneer wife.

Traditional 11th-century outdoor tannery.

The courtyard of this small Marinid madrasa is a dazzling example of intricate Islamic architecture.

This former royal palace with gorgeous gardens became the first museum in Morocco.

The other side is actually green.

Thousands of narrow alleyways in an ancient medieval city make up what's believed to be the world's largest car-free urban zone.

The designated Jewish quarter in Fez dates back to the 15th century.

An awe-inspiring mosque in Morocco with one of the tallest minarets in the world.

There was a top secret plan during World War II to seal a group of soldiers inside the rock.

Single runway interrupted by a busy road that cuts across its middle.

Spain's largest bullring offers a unique glimpse at architecture and history.

The final resting place of the great navigator, or maybe his brother.

For decades, Puerta del Sol has been illuminated by a giant, guitar-wielding bottle of sherry.

This sweet-toothed bear searching for snacks has been a symbol of Madrid for decades.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

This home designed for chocolate magnate Antoni Amatller is an exquisite treasure-box of Catalan Modernism.

The iconic boulevard is the perfect place to catch sight of a bicycling skeleton, a levitating Satan, or a chef with his head stuck in a pizza.