A journey begins with a single step, and for many, the road-trip of a lifetime started at this Chicago intersection.

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

The unluckiest U-boat in the entire German fleet is now on display in a Chicago museum.

This $3 million model train takes you through Chicago, Seattle, and the thousands of miles in between.

An outdoor urban gallery of large-scale artworks by the world's most influential street artists.

Once at the center of U.S. finance, the historic Trading Room was meticulously recreated piece by piece and rebuilt in the Art Institute.

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

This alley in downtown Chicago held the bodies of over 600 people after the fateful Iroquois Theatre fire.

A Bibliophile's Dream.

Not to be confused with the iconic New York City skyscraper, this Chicago building is a vibrant hub for artists.

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

A gothic church spire sits atop this skyscraper, the tallest church in the world.

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

A 400-foot-tall tall map of Chicago makes this once-ignored building stand out.

This 17th-century pub once had a hole in its wall so the neighboring blacksmith could easily access beer.

This restaurant's specialty is "a major enigma for food historians."

The little-known second castle that William the Conqueror built in York.

This network of narrow, medieval passages has the most delightful name.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

Revel in the Victorian splendor of the world's oldest eating establishment inside a museum.

Winner of the Leeds Award for Architecture and the Environment.

The name of this suspended sculpture is Latin for "high horse," which is exactly what it is.

This otherwise ordinary close on the Royal Mile constituted the end of the world for Edinburgh’s poorest residents.