A trough of 700 strange bronze faces runs through a narrow alley in Ljubljana's old town.

A whimsical bridge adorned with decorative dragons.

The only "Egyptian" pyramid in Europe and the legendary tomb of Remus.

The yawning maw of this pagan visage is said to bite off the hands of liars.

This picturesque horseshoe weir was first built in the 1600s to prevent flooding in the town of Bath.

Eighteenth-century home, where Herschel discovered the planet Uranus.

Apartment complexes built into huge repurposed natural gas tanks.

Vienna's giant wonder wheel had a starring role in one of the greatest noir movies of all time.

A plaque claims this artwork outside a children's hospital was used in the 1998 Quidditch World Cup.

Banksy's image of a naked man dangling from the window of a sex health clinic.

17th-century merchants in Bristol nailed their deals by placing money on these pedestals.

This cliff-face port is considered a masterpiece of mining engineering.

This elaborate hole in the ground was built as a sacred site for an ancient civilization.

This mysterious Sardinian festival sees a horde of blank-faced equestrians compete for tin stars.

The titular "little arch" near this Italian resort is one of the most popular diving spots in the country.

On the coast of Sardinia, a once-great mining village is finding new life as a coastal resort town.

Stalactites and stalagmites in a beautifully lit cave.

An incredible mosaic-lined monument said to have held the remains of an ancient Roman empress.

The roof of this ancient mausoleum is made from a single Istrian stone weighing a massive 230 tons.

This 6th-century church has the largest and best-preserved collection of Byzantine mosaics outside Constantinople.

Italian poet Dante Alighieri is entombed in this small mausoleum in Ravenna, and his hometown of Florence has never been too happy about it.

Filled with goldfish swimming in a shallow pool of sea water, this ancient crypt is more wishing well than burial site.

One Italian taxi driver covered his entire house in small seashells creating a weird bit of architecture that is preserved to this day.

A striking memorial recalls thousands of Bolognese men and women killed fighting fascists in World War II.