A concrete mushroom that divided Stockholm residents for nearly a century.

A 130-year-old urinal is the oldest of Stockholm and perhaps all of Sweden.

Sweden's "good old days" painstakingly re-created in a model village.

Stockholm's tiniest statue is of a small boy looking at the Moon.

One of the world's first dedicated bank buildings in the world is now the oldest one.

Stockholm's narrowest alley is barely over two feet wide.

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.

A sculpture of the beloved author surrounded by characters from his fairy tales.

The inverted pyramid design of this station stands out amid Bratislava's urban landscape.

Thousands of slain Soviet soldiers are buried within the shadow of this enormous obelisk.

This Slovak bridge is known both for its connection to a national uprising and its UFO-shaped eatery.

This Slovakian statue of an emerging sewer worker might just be a bronze peeping tom.

Along the edge of this fountain are 365 smaller fountains that represent the days of the year.

In the middle of a Vienna square, Roman ruins dating back some 2,000 years are on display.

Baroque celebration of the end of the Great Plague of Vienna.

This hidden collection of everyday objects illustrates life within communist Poland.

A miraculous three-handed portrait of a saint can be found inside this church.

A 300-kilogram egg sculpture that embodied a neighborhood revival.

An abandoned masterpiece of Soviet Brutalist architecture.

Travelers who fall victim to this mermaid's charms are destined to stay in Užupis forever.

Once a giant gingerbread factory, this space now hosts exhibits and workshops on the historic treat.

Artistic tombs, monuments, and a beautiful "Hall of Fame" lurk inside this cemetery.

Two very green residential towers cleaning the air in one of Europe's most polluted cities.

The secret medieval communication system will whisk your words above the noise of the crowd.