This bronze sculpture on a former squash court marks the secret origins of the Atomic Age.

This abstract sculpture is rumored to cast a hammer-and-sickle shadow once a year.

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

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.

The site of the first couple's first kiss is commemorated by the most adorable presidential monument ever.

This Indianapolis landmark offers a secret panoramic view of the city. 

An eerie smiling woman looms above the granite tombstones.

More than a century after her death, Little Gracie Watson remains one of Savannah's most often-visited residents.

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

The sculptor was instructed to add “stallion attributes” to the general's bronze mare.

A little sculpture with a large wardrobe.

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

Baroque celebration of the end of the Great Plague of Vienna.

Vienna's diversity-themed traffic lights were inspired by the Eurovision Song Contest.

Beautiful Austrian natural history museum with carved ceilings and row after row of ancient taxidermy.

Built to give thanks for the passing of a plague epidemic, this cathedral is a one-of-a-kind architectural hybrid.

Along the edge of this fountain are 365 smaller fountains that represent the days of the year.

This bar hosts an ever-evolving napkin art installation devoted to an American president.

A 19th-century cemetery device to ensure that the prematurely buried would be "saved by the bell."

This quirky curiosity shop takes its cues from the world's bazaars.

A once-groundbreaking power plant turned into a hotel and mini-museum of archeological and geological wonders.

An ode to this small town's big film history.

Performers, intricate sets, and a real speakeasy tell the story of the 18th Amendment.