One of Jeff Koons’s largest sculptures and his first commemorative work.

Bask in the 19th century grandeur of an eccentric Freemason millionaire's private gardens.

Barça football fans might see the insignia hidden in a church window as a divine sign.

A rare set of strings by famed instrument maker Antonio Stradivarius is on display in the Royal Palace.

A lush indoor jungle fills this bustling Madrid transportation hub.

Spain's largest bullring offers a unique glimpse at architecture and history.

The final resting place of the great navigator, or maybe his brother.

The world's largest wooden structure.

A grumpy old water goblin guarding an old mill on the Devil’s Stream in Prague.

A plaque marks the spot where the saint was shoved off the Charles Bridge and into the river.

Straight out of a nightmare, barcode-faced babies climb up and down Prague's television tower.

Steadily reminding Czechia of its past.

This spooky statue sits outside a famous Prague theater.

A mocking tribute to the past and modern leadership of Prague.

Despite attempts by local police to discourage it, Beatles-inspired graffiti has been a means for artists to air grievances for decades.

What looks like a suicide in progress is actually a statue of Sigmund Freud.

Countless grotesque faces stare out from this eerie Prague art wall.

Two stunning 17th-century libraries and a cabinet of curiosities.

A journey through the history of medicine throughout the centuries.

The unexpectedly beloved remnants of a controversial thermal power plant.

Occupied for six centuries by Franciscan Order nuns, this monastery is an amazing ode to Catalán Gothic architecture.

This stunning iron gate designed by Modernist architect Antoni Gaudí is filled with mythic symbolism.

These fly sculptures are scattered around the city and represent the patron saint of Girona.

Kissing the ass of this stone lioness has become a rite of passage in the city of Girona.