A statue dedicated to the antihero of the Nibelung legend.

At the largest railway museum in the United States, you can see everything from an early steam engine to a functioning Thomas the Tank Engine.

Hundreds of years ago, this lion-shaped door knocker could help a person accused of a crime find temporary safe haven in Durham Cathedral.

The last masonry skyscraper ever built reveals a transitional moment in architectural history.

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

Rifle through images of skyscrapers, Worlds Fairs, and more in the largest public postcard repository in America.

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

Where old school Polish Chicago and young hipster Chicago live side by side.

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

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

This surprising gem is a world-class archeological museum hidden at the University of Chicago.

One of the largest carillons in the world, this giant instrument has 67 cast-iron bells played by a keyboard.

A marvel of Byzantine engineering under the streets of Istanbul.

Two nearly identical Chinese pagodas stand side by side, along with ancient stone relics.

The Scottish Reformation leader's grave was paved over and is now a parking lot.

A century-old hotspot for jazz, frequented by everyone from Charlie Chaplin to Al Capone.

Originally built for London’s cab drivers, this bright green hut now serves anyone a hot drink or meal.

On October 17, 1814, a 15-ft. wave of beer ran rampant through the streets of London.

An easily overlooked stretch of ornate window fronts and gaslight lamps that could be right from the pages of Dickens.

These official units of measurement—including chains and perches—lie hidden beneath tourists' feet in a popular London hub.

A charming 17th-century alley is lined with secondhand bookstores and antiquarian shops.

The ill-fated plan to reroute the Mississippi so that Union ships could bypass Confederate fortifications on the river bend.

Two hundred tons of pioneer artifacts were painstakingly recovered from a shipwreck at the bottom of the Missouri River.

The multinational Burger King chain is banned from operating within 20 miles of a family restaurant filed under the same name.