Located in the thermoelectric factory that once powered the entire city, this Portuguese museum is shockingly fascinating.

A king's pet, a pope's gift, an artist's inspiration, and a tragic shipwreck.

A unique seaside cave where Aleister Crowley faked his own death.

This unassuming chapel in Portugal plays host to a ghoulish collection of bones.

Dead weights honor the dead of Portugal's fishing industry.

On a trail in Portugal's Barão de São João National Forest, a pile of faces look up at hikers from the forest floor.

Along the pavement of this neighborhood in Madrid are quotes from famous authors.

Commonly acknowledged as the only public monument to the Devil himself.

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

A haven for book enthusiasts across the street from Retiro Park.

A lush indoor jungle fills this bustling Madrid transportation hub.

A pair of gigantic baby heads greet passengers at Atocha Station.

At this century-old barbershop, clients used to be entertained with a glass of brandy and a cigar.

A must for film lovers in Madrid and home to the Spanish Film Library's projection space.

This open-air sculpture museum is located under a bridge in the center of Madrid.

A comprehensive look at the art of Joaquín Sorolla in his former home in Madrid.

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

This girder was hit by a bomb during the Spanish Civil War, but nobody knew about it until 2016.

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

Sometimes called the Banksy of Madrid, Muelle was a pioneer of street art in the Spanish city.

Dedicated to a young woman who broke gender barriers at the University of Madrid.

A window into a long-lost world, these colorful tiles advertise a long-defunct range of purgative teas, harmless smokables, and diarrhea cures.

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.