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

The 19th-century home of Count and Countess von Hallwyl is now a museum.

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

A golden plaque marks the site of the mysterious unsolved assassination of the former Swedish prime minister.

A steel paper plane is all that remains of a crashed aircraft that caused an amazingly small amount of damage.

This giant crucifix is like U2's Joshua Tree for Swedish death metal fans.

The Swedish flag over this small naval fort signals that the nation is at peace.

Enormous ants wielding giant pine needles guard a Stockholm real estate company's office.

The scars of a remarkably organized public protest to save 13 elm trees are still visible in this Stockholm park.

Sweden's oldest animated sign is still lighting up the skyline today.

This gem from the industrial age helps visitors and residents alike traverse hilly Stockholm.

When this 18th-century observatory's meridian was moved, it set Sweden's time back by 0.04 seconds.

This homeless brass fox tugs at your heartstrings from the foot of a Stockholm bridge.

A man has revenged his true love's betrayal through tears and stone genitalia.

Eat a Nobel banquet from any year in the basement of Stockholm's City Hall.

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

The discovery of an old wall led to the creation of this fascinating museum about the city in the Middle Ages.

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.

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

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

Stockholm's deepest subway station is also a stunning ecological wonder.

The library's graceful rotunda is like a bibliophile's temple.

It houses the remains of a 17th-century version of the Titanic.

Stockholm's decidedly unique public transit system has doubled as the world's longest art gallery for decades.