An indoor miniature village and labor of love for Laurence Geiringer, a model railroad enthusiast.

One of the world's oldest continually operating bookstores.

Memorializing an American tragedy of massive proportions.

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

A dramatic, 360-degree recreation of Pickett's Charge in the Civil War.

Steepest flood safety railway in the entire world.

This beloved marketplace mascot poops money and grants good luck.

A tradition unlike any other, this marks the site of the annual Groundhog's Day tradition.

A field of nothing but boulders which resembles a giant's gravel driveway.

Yo, Adrian!

In which a local geological marvel becomes a quaint roadside attraction.

These tourist trap caverns are said to be the former home of a legendary Pennsylvania Hermit.

A toxic ghost town sitting atop a massive coal fire.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

World's first "penitentiary," meant to be humane, drove men insane.

Infamous marsh filled with toxic waste, World War II-era London rubble, and dead mobsters galore.

Historic town settled in the 19th century because of its convenient location along a popular coal transport route.

The story behind this beloved toy—named for Theodore Roosevelt and owned by his grandson—is more complicated than you might guess.

The National Park Service’s best-kept secret with views that rival any in D.C.

Look closely and you’ll notice that the color changes a third of the way up the tower.

The "lovely red Vega" of the legendary record-settling pilot.

The site of the climactic scene from the classic horror film is now a historic landmark.

A tunnel with windows, so you don't miss out on the impressive views.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."