One of the oldest reform schools in the United States, home to wayward boys such as Merle Haggard, now abandoned.

The remains of an attempt to carve a thriving metropolis from the forest, and once home to the first revolving door in North America.

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

A beautiful geyser under environmental threat.

The first declared National Monument in the United States.

The world's largest fully steerable radio telescope.

One day a year it is legal to jump off of this astoundingly tall bridge that spans an Appalachian gorge.

Once connected to the outside world by a single train track, this ghost town is looked after by the National Park Service.

This famous bridge twisted itself into oblivion, but not for the reason you might think.

An American city stranded at the tip of a Canadian peninsula where strict adherence to the "49th parallel rule" became problematic.

Come for the speed, leave in love with the desert.

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

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

You might know it as the Overlook Hotel, but the inside is not going to be familiar.

The deepest lake in the United States, and once the site of epic destruction that lives on in legends.

This former mining town was named the most toxic town in America.

This shifting North Carolina sand dune is an odd little desert surrounded by oceanic forest life.

The only known Futuro house in North Carolina sits along a stretch of desolate highway on the Outer Banks.  .

Toxic waste disaster that founded the Superfund program.

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

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

Elevated freight railway turned wildly successful urban park.

The rusting remains are visible sticking out of the waters of the Delaware Bay.

World War II bunker still standing on the New Jersey beach.