This once-derelict building is now one of the most beautiful bookstores in the world.

It is said that each of the white stones in the red facade of this medieval house represents the head of a murdered Swedish noble.

This walkway is so narrow it needs its own light to stop pedestrian traffic jams.

This memorial to the victims of the Romanian Revolution of 1989 is often compared to a potato on a skewer.

A monument to the man who almost killed Hitler.

Where once there was a train station bathroom, there is now this German burger joint.

Pigduck of Turku.

This irregularly shaped sea fortress has defended not one but three different sovereign states.

The Guardian of Tallinn.

This medieval Estonian tower provides access to a series of tunnels that have been home to soldiers, punks, and fine art.

Disused seaplane hangar gets a second life as the jaw-dropping home of Estonia's museum of maritime history.

An empty relic of the Moscow Olympics crumbles away in Estonia's capital.

The statue of a legendary giant who carried Christ and shouldered the world's sins.

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

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

Flamboyant architecture from the turn of 20th century.

3,000 market stands in five former Zeppelin hangars.

A cathedral resurrected from the ashes of one of Europe's greatest urban fires.

This insurance company building reminds customers that witches, bears, and gnomes are out there, best be insured.

A subterranean house of worship carved right out of the bedrock.

An alien church provides much needed silence in the midst of a Finland shopping center.

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

One of the most iconic neon ads of former East Germany.

Home to more than 13,000 pieces of war memorabilia and military equipment.