An ancient Roman theatre restored to its former glory in the Spanish city of Cartegena.

It has an American Dream Car exhibit, Europe's largest Formula One collection, and many, many mannequins.

Sitting in the basement of a castle, the largest wine barrel in the world is bigger than most apartments.

It's good luck to be mocked by this monkey.

A monument to the three wars that led to German unification towers within a Berlin traffic circle.

Thousands of flowers create enchanting pink tunnels over the city streets.

A castle from the Holy Roman Empire that hosts traveling youth... in its stables.

This Nazi-built amphitheater was constructed on a sacred mountain site used by various German cults.

The last remnants of a massive medieval wall that once encompassed the city of Berlin.

Berlin's natural history museum houses the world's largest mounted dinosaur and the late beloved polar bear Knut.

On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.

The most visited, and possibly most controversial, museum in Germany.

This bridge was constructed from the rubble of the infamous Bastille.

Lyon, France is home to two remarkably preserved Roman theaters, one dating back to 15 BCE.

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

One of Ireland's most infamous prisons for rebels including men, women and children.

This is the largest cemetery in Ireland and the first cemetery museum in the world.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

The entrance to this Frankfurt subway station looks like an old tram car crashed into the concrete sidewalk.

This Garden District mansion was built to be bigger and grander than its original owner's former partner turned rival.

The tallest monument in a historic New Orleans cemetery was prompted by romance and dash of pettiness.

This distinctive Crescent City tradition dates back to the days of horse-drawn carriages.

This New Orleans statue of a portly figure in a goofy hat pays homage to a classic of satirical literature.

Taxidermied cartoon heads, unseen illustrations, and famous characters all reside in this small gallery space.