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

The nearly 120-year-old piece of pork wears a brass collar and was once a man's "pet ham."

A former mental hospital founded in the 1930s by a eugenicist who advocated for the forced sterilization of patients.

An alternate history park where the Union Army loses the war... to dinosaurs.

Outsider art meets paleontology at this roadside reptile repository.

It was once the base for a series of domestic terror attacks.

Washington's iconic carousel has a nice piece of Civil Rights history.

Some North Carolina Cherokee have been keeping their history alive for decades with a single play.

A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.

I-95's Tijuana-style celebration of kitsch at the Carolina border.

These ruins of a pre-Columbian cliff village are among the most beautiful and well preserved in New Mexico.

A phenomenal assembly of pueblos in New Mexico is the most complete example of ancient ruins north of the border.

These sub-farmland caves are home to a majestic stalactite known as the "Crystal King."

The second-largest cave chamber in the world was discovered in 1898 by a 16-year-old and a friend known as "Pothead."

This isn't your average roadway—it's actually a National Park and a transportation pioneer.

This 29-ton granite ball spins around at the slightest touch thanks to a scientific phenomenon.

This steep cable railway has been hoisting passengers in the heart of Québec City for over a century.

A contemporary fresco movement illustrates the region's rich history.

This lovely, if imposing, piece of Canadian gothic is possibly the most photographed hotel in the world.

This high point in the Great Smoky Mountains is said to be home to the chief of all bears.

The highest point in Maryland is only accessible by hiking through another state.

Pennsylvania's highest point is spotted with boulders which were pushed to the surface by nothing but cold.

Maryland's first (and last standing) toll house on America's first federal road established the state as the "Gateway to the West."

This one-room cabin where the young colonel slept during the French and Indian War.