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

A reproduction of the famous prehistoric cave paintings is hidden underground at the National Archaeological Museum.

Touching this little fossil embedded in the wall of a grand mosque-cathedral may make your wishes come true.

This medieval synagogue survived the Inquisition as a hospital and church.

Spain's unique Mosque-Cathedral has been a place of worship for both Muslims and Christians throughout its history.

A curious carving hides on a marble column in the Mosque-Cathedral of Córdoba.

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

Engineering ingenuity during the battle of Gibraltar.

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

Red, white, and blue painted steps along with a Union Jack celebrate the outcome of Gibraltar's 1967 referendum.

Many of the tombs contain victims of yellow fever epidemics.

The world's largest wooden structure.

A masterpiece of Rationalist architecture in the center of Madrid with lizards on it.

One of the best examples of the modernist movement in Madrid.

A small museum displays some of the artifacts discovered during a subway station renovation.

Artist Natividad Sánchez wrote a new ending for one of Roman mythology's tragic love stories.

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

A tunnel commissioned by ‘the Intruder King’ to escape from the palace if there were problems.

The remains of a convent turned military barrack in the heart of Madrid.

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

The writer's study, a “portable museum,” is on display at the Museum of Contemporary Art in Madrid.

This phone booth was recreated to honor "La cabina," considered the best horror film in the history of Spanish television.

Crafted in the royal workshop of Saint Isidoro of León, in 1063, this is the first medieval Hispanic crucifix featuring the image of Christ

This enigmatic artifact is a rare depiction of an ancient Iberian noblewoman.