The palatial McDonald's that inspired Wesley Willis.

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.

Chicago was once a major hub of film production, but being silent film you don’t hear much about it.

This cheerfully-named branch of the Chicago River is the fetid result of years of blood, entrails, and meatpacking waste.

This memorial plaque remembers a strangely shallow maritime disaster known as "Chicago's Titanic."

Recognized the world over as the home of the McCallisters in the 1990 movie "Home Alone."

Each of these gorgeous, intricately decorated rooms is painstakingly crafted to the scale of 1 inch: 1 foot.

A science teacher's dream.

Eclectic collection of rare and beautiful stones in a historic home.

Partially submerged Buddha heads freckle Chicago’s neighborhoods.

An antiquated German apothecary on Chicago's North Side.

This restaurant proudly displays bread signed by the 39th president.

A new sculpture calls attention to climate change in the centuries-old city it threatens.

Two stone columns flank the grand Venice square, but there were supposed to be three.

The colonial city's social history is reflected in its fanciful door knockers.

A fantastical 13th-century fortification sandwiched by a modern hotel in central Brussels.

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."

A marvel of Byzantine engineering under the streets of Istanbul.

Look closely and you’ll notice that the color changes a third of the way up the tower.

Those with a sharp eye can find the hidden image of a German Shepherd on the memorial's Mural Wall.

The spot in the Mile-High City that's exactly 5,280 feet above sea level (at least for now).

Strange red rock formations that have been attributed to a higher power for hundreds of years.

One of the Seven Wonders of the Modern World holds the world's tallest metal staircase.