This giant sculpture made of trash is a critique of society's wastefulness.

This eccentrically decorated palace is replete with grottoes, fountains, tunnels, and caves.

Micro-nation based around a nine-story high illegally built tower.

This Danish park has celebrated the American independence day since 1912.

This World War II airfield enjoys a second life as a public park.

This huge industrial sculpture looks like a UFO and a factory had a baby.

Six beautiful wooden giants are hidden around Copenhagen.

Metro station with a claim to rock n' roll fame.

After nearly 60 years, there's still a bear at Paddington Station looking for help.

This statue was given to France by the United States to commemorate the centennial of the French Revolution.

What happens when a sculptor has to find a way around a 100-year-old copyright.

Southern Italy's spinning top village.

This medieval oratory decorated in magnificent frescos was constructed after Charlemagne received a vision.

Inscriptions found in the Majella mountains reveal stories of resistance and rebellion after the unification of Italy.

The European towns of Brașov and Râșnov each have proud signs reminiscent of the Hollywood sign.

A Byzantine-era church hidden in a wooded area below the Acropolis.

This Polish cave has housed a dragon, a brothel, and an enduring legend.

The former Nazi concentration camp stands as a museum to remember this dark chapter in European history.

An underground city of salt.

Built in 1870 at the bridge that connected Buda and Pest, this spectacular incline railway was almost lost forever during World War II.

Two stone columns flank the grand Venice square, but there were supposed to be three.

Thousand-year-old Viking runes adorn an ancient Greek lion at the entrance to the Venetian Arsenal.

Go inside to really appreciate this 500-year-old technological masterpiece.

This 2,000-year-old Doric bridge is still open to pedestrian traffic to this day.