A Trabant car, a kangaroo statue, and a plethora of plants take over this abandoned-factory-turned-bar.

This Hungarian castle was built out of cardboard and wood until it proved so popular that it got upgraded to stone.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

Dr. Fleming's work saved the lives of many bullfighters thanks to his discovery of penicillin.

The famous sculptor had a hand in this imposing fortress.

An ancient Roman snake god, carved expertly into stone.

Built in 1925, this glass-roofed shopping arcade is known for its modernist Italian architecture.

This sculpture pays homage to the street sweepers of Madrid since its inauguration in 2001 in Plaza Jacinto Benavente.

One of the world's oldest universities houses an incredible collection of anatomical models, mummified body parts, and human bones.

Stuck in the middle of a modern Madrid city block are the remains of a 19th century sports complex.

A monument at Alicante Marina honors a little-known hero of the Spanish Civil War.

This interactive museum highlights the history and philosophy of one of the world's most difficult sailing races.

A well-restored ancient archaeology site gives a real feel for life during the Roman age.

This magnificent market stands as a poignant symbol of the suffering caused by the Spanish Civil War.

Once used to calculate the various levels around the country.

Fascinating exhibits of prehistoric and ancient artifacts displayed with a uniquely modern touch.

Down this yellow brick road, visitors are treated to toadstool houses and massive mushroom sculptures.

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

The only Roman honorific column in Istanbul.

These three pillboxes still remain as a witness of the Spanish Civil War in a park of Madrid.

A towering monument in Spain has proven to be more labor-intensive than initially planned.

An iconic and controversial ancient Iberian funerary urn with a hauntingly penetrating gaze.

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

After the queen of Spain had a dream where these statues fell and crushed her, they were removed from the palace and given new homes around Madrid.