Geological storytelling.

Just like in Hollywood, Madrid has also a forgotten walk of fame.

Vibrant street art created with mixed media.

A micro-communist utopia in Spain with no police, no mortgages and full employment.

Among the oldest structures in Madrid, these Moorish walls once guarded the medieval city of Mayrit.

An eerie collection of the surviving structures from a past celebration of the future.

This religious complex carved into a cliff is steeped in legends of miraculous stags and the Holy Grail.

This lucky bronze frog was gifted to Madrid by a casino.

The lengthy skeleton of one of the tallest Spaniards of all time is on display in Madrid.

An exact replica of a colossal Olmec head sits atop a pyramid within a Madrid traffic circle.

The little church's beautifully frescoed ceiling has earned it the nickname “the Sistine Chapel of Madrid.”

Numerous sculptures set along hiking trails symbolize and idealize the relationship between man and nature.

In the fictional world of Kcymaerxthaere, celestial wonders marked a portal to a powerful route of travel at this site in Madrid, Spain.

A once-secret library of Freemason history in Catalonia.

The only urban monument in the world designed by the great surrealist painter Salvador Dalí.

The earliest known map to show America, discovered by accident at a Paris bookshop.

Stunning Roman aqueduct used for 1900 years and still standing.

This cafe offers a curated collection of treats and tipples made by monks and nuns.

Abandoned for decades, trains still pass through the now-restored remains of one of Madrid's first metro stations.

A museum dedicated to the Spanish occult in a town that was terrorized by the Inquisition.

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

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

Mountain where Jesus was first tempted by the Devil.

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