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

This jail which was in service for over a century is now open for curious visitors.

“Ireland’s only inland lighthouse” is not actually a lighthouse at all.

A museum dedicated to the legend of Bigfoot in the Appalachian Mountains.

The body of one of the world's most famous outlaws is covered in cement and iron to prevent it from being stolen.

Inspired by a piece of concrete, these three pyramid-shaped buildings have been beloved Indianapolis landmarks for over 50 years.

This anonymous businessman sculpted in bronze became an enduring memorial after 9/11, and had been mistaken by rescue workers for a survivor in the rubble.

Tucked away amidst some of the most famous addresses in the world is New York’s only fraction of a street.

Wall Street has a new heroine, a bronze statue of a small but fierce girl.

World War II-era bunkers are hidden under the beaches of this picturesque park, which is still scattered with wartime watchtowers.

This plaque celebrates the sister city relationship between Fredricksburg and Fréjus.

The site of one of the deadliest skirmishes during the Battle of Fredricksburg.

An oft-overlooked, magically musical monolith that stands majestically between Arlington Cemetery and the Iwo Jima Memorial.

A gift from Scotland to the United States in memory of the 270 lives lost when Pan Am Flight 103 exploded over Lockerbie due to a terrorist bombing.

This Federal-style plantation house was once visited by Abraham Lincoln to meet with generals during the Civil War.

A natural spring situated on the grounds of the Hawthorne estate.

Country fans may flock to Nashville's music scene, but this Appalachian town is where the genre was born.

Rumors persist that a bottle of whiskey is sealed within this Demijohn-shaped adornment.

The first blast furnace in the United States that used coal and coke fuel instead of charcoal to make pig iron.

The actor best known for slapstick comedy is memorialized in his home town.

A beautiful hidden gem in central West Virginia.

In 1952, a strange encounter in the woods of West Virginia led to the legend of a 10-foot-tall monster with glowing eyes and a distinctive style.

A well-preserved relic of the industrial age steel and iron works that dotted West Virginia.

This university transit system is a 1970's vision of the future.