Macabre astrological automaton clock dating to the late 1400s.

A church of bones, decorated with 40,000 human skeletons.

Extremely famous in his native country, this Cracovian painter is all but unknown beyond Polish borders.

St. Mary's features one of the most spectacularly decorated cathedral interiors in all of Europe.

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

Time stands still at this serene burial ground in the center of Budapest.

Tucked away near more famous landmarks lies a statue meant to symbolize the confluence and continuing development of human culture.

Budapest's Communist-era statues, banished to the suburbs.

Once the home of a hermetic monk, this cave now houses a small church.

When a supermarket opened up shop within a medieval building it became protected by UNESCO on a technicality.

A Stockholm metro station is home to an escalator that is not only the longest in Sweden, but among the longest in the world.

A Gothic-inspired fish market is Gothenburg's best place to find loaves and fishes.

Now a hotel, this former bank was the site of a robbery that spawned a psychological phenomenon.

This endearingly discomfited urinating statue commemorates the sneaky pees had by us all.

Architecturally stunning library serves as the hub of Finnish scholarly life and culture.

This fantastical icy castle is built anew every winter.

Legend has it that Napoleon Bonaparte fell in love with this Gothic church.

Flamboyant architecture from the turn of 20th century.

A black cat protests the City Guild in Riga's Old Town.

The oldest housing complex in Riga is a mini timeline of architectural trends.

3,000 market stands in five former Zeppelin hangars.

The Guardian of Tallinn.

Estonia's largest creative city is a vibrant bohemian hub located within a former industrial complex.

These brass bunnies honor the rabbits that dominated the no-man's-land around the Berlin Wall.