Over two centuries old and counting, Madrid's massive botanical garden contains one of Europe's only desert environments.

The 2,000-year-old Roman columns are hidden within Barcelona's Gothic Quarter.

A lush indoor jungle fills this bustling Madrid transportation hub.

A stately palace has been converted into the world's largest cannabis museum.

Week-long block party becomes a competition for the best decorated street.

An ancient Egyptian temple in the middle of Madrid, Spain.

The oldest restaurant in the world is this old-world Spanish eatery, still known for its suckling pig.

Madrid's romantically ornate crystal palace has been offering shelter to plants and art for over a century.

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

This cemetery features modernist statues as strange as its name.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

This antique rail car has been reborn as an urban cafe.

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

It took 82 years and four different plaques to finally get the story right.

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

Situated on a sacred Inca site, this 16th-century cathedral took nearly 100 years to build.

This geometric feat is a testament to the Incas' mesmerizing architectural abilities.

This unimaginably large pile of sand near Nazca is one of the tallest dunes in the world.

The mysterious "Candelabra of the Andes" could represent anything from a god's trident to a hallucinogenic plant.

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

An unexpected desert oasis in South America.

A pretty park of over 1,600 olive trees that grew from just three saplings brought over from Spain.

Now containing the bones of the actual conquistador, instead of someone else.