A pink sandstone column once used in ancient times to measure one's belly after a night of debauchery.

Explore this medieval cathedral by trying to spot all the malevolent monsters hiding in its beautifully colored windows.

There has been an astronomical clock on this spot since the 14th century.

Visitors dating back to the 1600s carved their marks in the stones of the iconic tower.

This enormous "cloth of the conquest" depicts the Norman invasion of England in mind-blowing detail.

These crumbling Nazi artillery bunkers are now fair game for massive graffiti projects.

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

These former Nazi anti-aircraft towers offer a singular view of the north of Berlin in the summer, and a sanctuary for bats in winter.

The spiciest place in town - where one can and may cry

Concerts, art, offices, and a café in what used to be Berlin's first crematorium.

The mental institution where Van Gogh created some of his most famous work now allows guests to walk in the artist's footsteps.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

This Communist-era residential block is one of the longest residential building in Europe.

A mysterious concrete hand reaches out from between the stones of Uniwersytecki bridge.

This ex-prison dates back to the Middle Ages.

In the center of Wrocław's old meat market stands a somber tribute to the city's livestock.

The silly symbol for an underground protest group is now scattered around the city.

A 90-ton, gravity-defiant steam locomotive shoots for the skies in this bizarrely beautiful public artwork.

This oddly beautiful water cistern is a techno-temple to the wet stuff and a multimedia masterpiece.

A striking public sculpture representing the period of martial law in Communist Poland.

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

Visitors to this Belgium graveyard are greeted by the grieving stone parents of the young men lost to war.

Despite its romantic name, this cross marks the site of a tragedy (and, incidentally, an ancient frontier)

Museum in a swimming pool where the water still flows.