Don't get it twisted: This is the oldest pretzel bakery in the United States.

Amid the bustle and noise of the Financial District hides a secluded garden oasis above the city streets.

Large Hadron Collider and the Birthplace of World Wide Web.

Paris' linguistic guide to the international language of, yes, love.

A large measuring stick marks the lowest point of a country that is partially under sea level.

This elaborate High Victorian Gothic structure is one of the world's few 16-sided buildings.

Two thousand artifacts from around the world collected by one woman who loved to travel.

The abandoned mine where American troops discovered a treasure trove of art and artifacts hidden by the Nazis.

The medieval institution is home to the precious treasure stolen in World War II in one of the greatest art thefts of the 20th century.

The bar where "The Great Train Robbery" was planned was once a nexus of high society and low morals.

Lured here by the promise of tens of thousands in gold, Jesse James started a quintessentially American trend of robbing trains in-motion.

An ancient monastery, a locked room, and a mysterious book heist.

The site of the notorious Great Train Robbery of £2.6 million, one of the biggest heists in English history.

The largest treasure hoard in Europe is contained in a castle that was bombed out during World War II.

The last remnants of a massive medieval wall that once encompassed the city of Berlin.

The Hveragerði fissure runs through this unassuming shopping center.

A 17th-century bezoar, dirt from an infamous site, and other curios decorate this unusual bar.

The only thing these street signs will help you navigate is your imagination.

A giant baby floats in the middle of Singapore’s nature park.

Edinburgh’s version of the Sistine Chapel is this former church, with an interior covered in paintings done by one woman over the course of nearly a decade.

A labyrinth hides in plain sight at each of the city's 270 Tube stations.

A sewing machine tycoon built this miniature castle for the people and to beautify a lakeshore.

The first ever diner included on the National Register of Historic Places is famous for its custard French toast.

Turns out you can see the world without ever leaving Maine.