A little sculpture with a large wardrobe.

This collection of over 50 murals celebrates Brussels' rich history as the self-proclaimed home of the "comic strip."

From Tintin to the Smurfs, Europe's greatest graphic icons are celebrated in a grand Art Noveau gallery.

Climb inside an iron crystal magnified 165 billion times its normal size.

This massive boulder was hurled into a Zurich church when a gunpowder depot was struck by lightning in 1652.

A nearly 500-year-old sculpture depicts a man eating a sack of babies, and no one is sure why.

A golden egg-shaped sauna in the Arctic tundra.

This charming fountain honors Felix Salten, the creator of the iconic storybook deer.

One of a series of no-purpose kinetic artworks by Swiss sculptor Jean Tinguely.

This Stockholm art museum integrates many of its pieces into the surrounding outdoor areas and natural landscape.

A collection of birches from across Sweden.

There are hidden patterns on the subway seats of some Stockholm metro cars.

The largest collection of model trains in the world is actually run using full-size locomotive technology.

An homage to Jackie Gleason's bus-driving character from 'The Honeymooners.'

This whimsical group of statues is a favorite of children who love to climb all over Lewis Carroll's beloved characters.

Amid the bustle and noise of the Financial District hides a secluded garden oasis above the city streets.

An ornate private entrance to the Vienna subway built specifically for the emperor.

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

The eccentric midcentury home of a suspected mafia gun-runner.

Stockholm's last remaining paternoster elevator.

Not far from where one of the most famous Swedes of all time is buried, an infamous man was put to rest.

A response to the wrongly placed meridian of the same name.

Not far from the busy city lie these remains of a time when the world was on fire.

A water reservoir disguised as a castle stands atop a hill in a park in Stockholm city.