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

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

This statue dedicated to the story of a Flemish boy and his dog was relatively obscure in Belgium, but a cult sensation in Japan.

Unsurprisingly, Holland is home to one of the most magnificent flower gardens in the world.

Castle and secret tunnel withstood a siege until its owner was killed by the Holy Roman Empire, while sitting on the toilet.

The "dragon babies" of southeastern Europe.

A miniature train-ride through Slovenia's largest cave system.

A whimsical bridge adorned with decorative dragons.

A chain of 16 wondrous lakes formed as a result of the gradual dissolution of soluble layers of bedrock.

Wisconsin's most celebrated export gets the royal treatment on I-94.

Urban explorers embraced America's now demolished first suburban mall, south of Chicago.

The only Bahá'í house of worship in North America and one of only a handful worldwide.

The first home and studio that belonged to the famous architect.

What's left of the ruins of the 1893 Columbian Exhibition, or World's Fair, also known as the White City.

An enormous park-like oasis, full of famous Chicagoans' graves.

A lush green oasis in the middle of Chicago.

Landmark Chicago building narrowly avoided destruction.

Chicago's Navy Pier on Lake Michigan was a training hub for aircraft carrier pilots during WWII.

This historic house museum that celebrates one of the world's most influential social reformers is also one of the most haunted locations in Chicago.

The palatial McDonald's that inspired Wesley Willis.

Fragments of architectural wonders from around the globe are embedded in the newspaper building's walls.

Illegal drag racing two stories beneath Chicago’s streets.

The twin towers in this Chicago fountain use 50 foot tall video screens to spit on people.

This massive stained-glass masterpiece is thought to be the largest Tiffany dome in existence.