This antique shop specializes in the history of print and design.

Its buzzing collection honors vibrator history.

This tiny chapel next to a highway provides weary travelers a place to rest, pray, or maybe even get married.

A historic blockhouse and trading post give a glimpse into the early colonial history of South Carolina.

The graffitied ruins stand hidden within the Pennsylvania woods.

America's Most Wanted's set resides in this tribute to the history of crime and punishment.

The unique traffic pattern named for an influential urban planner is also known as the Pedestrian Scramble.

Inspired by a foil-wrapped potato, (seriously) the Markel Building has been deemed one of the 10 ugliest buildings in the world.

The school tested mustard gas for the U.S. Army during World War I.

The airport was once a Civil War battleground, and the earthwork defenses can still be seen today.

A railroad tunnel that, upon its completion, was considered one of the engineering marvels of the modern world.

Arizona's first government hub is a rustic cabin now preserved as part of a historical museum.

Lines from a walking song are etched into a rock in Natural Bridge State Park.

Over 20,000 sets of spice shakers reveal the surprisingly telling history of our most basic spices.

An abandoned cemetery lies in ruins as the surrounding forest swallows it whole.

Railroad came. People came. Railroad left. Town died.

The home of possibly the least-loved U.S. president stands as a sort of unpopular Monticello.

This shrine to McDonalds' most iconic sandwich holds a 14-foot tall burger.

The only way to see Pittsburgh is from the top of this lookout point, just like the ancient members of the native peoples did.

The headquarters of the Fraternitas Rosae Crucis, complete with Rosicrucian pyramids, all in the Pennsylvania woods.

An abandoned stretch of highway, deteriorating next to the operational one.

Frank Lloyd Wright's most iconic home dangles over a Pennsylvania waterfall.

Obscure Freemasons still live in D.C.’s largest private residence.

There's a crumbling old mansion inside the Smithsonian National Zoo.