A winding, cliffside stretch of road overlooking the Delaware River.

The only geyser in the state of Pennsylvania is caused by pressure from an abandoned coal mine outside of the ghost town Centralia.

A toxic ghost town sitting atop a massive coal fire.

This shale formation along the Appalachian Trail once inspired the third president of the United States.

The last holdout of a pre-Civil War rebel who took the matter of slavery into his own hands.

This advertisement for talcum powder was painted on the rock face and has since defied removal.

Once the largest gravity dam in the world.

The Burnside Fountain and its questionable interpretation.

This railroad tunnel was once the longest in Massachusetts.

A comic book store got the road by its shop officially renamed after Superman's girlfriend.

The window above the urinal in the men's restroom is a giant periscope that offers a panoramic view of Eagle Harbor.

East meets West in this Japanese-style garden featuring plants native to Maine’s Mount Desert Island.

Neighborhood in Jerusalem is home to the ultra-orthodox haredim.

A self-funded cemetery with a long list of inhabitants.

Permanent exhibit reminds visitors of the Exxon Valdez.

The Pennsylvania shopping center was once the setting for the 1978 film, "Dawn of the Dead."

These tall, red sandstone pinnacles outside Moab are often forgotten amid their more famous neighbors.

For over a century, it has been a tradition to raise a flag at the top of this 450-foot sandstone pillar on the 4th of July.

The San Andreas Fault spectacularly offsets this creek.

The sun acts as a key that only fits this giant keyhole twice a year.

Journey inside the bowels of this sperm whale sculpture.

A land of debatable treasure.

The rusting relics of Southampton's former luxurious flying boat industry.

Known for the tunnel that leads visitors to the water.