Quite simply the largest tree in the world (by volume).

Once thought to be the oldest living tree in the world, Methuselah was germinated before the Egyptian pyramids were built.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

A sculpture made of 10 Cadillacs as a monument to the “Golden Age” of the American automobile.

Community owned and operated, this property is home to a diverse set of nudists.

When ecosystems collide in the arid Southwest.

A multi-storied adobe complex has been inhabited for more than a thousand years.

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

The world’s first penitentiary, meant to be humane, drove men insane.

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

The Hudson River School comes alive at this palatial estate.

The Vermont square that inspired Shirley Jackson's "The Lottery."

Why have you never heard of the second most popular tourist site in New York?

Cryptid lake monster honored with its own monument.

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

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

A toxic ghost town sitting atop a massive coal fire.

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

Despite its lavish ornamentation, and wholesome lifestyle of its devotees, this mountain commune has faced its share of issues.

Lake Champlain Bridge, the recently demolished and rebuilt bridge where they filmed "What Lies Beneath".

Small rustic cabin nested in the mountains of Killington, Vermont.

Buildings that dynamite couldn't bring down were abandoned because of bathroom issues.

Oldest existing wire suspension bridge in the United States.

The granddaddy of all tourist traps, built on ice water, jackalopes, and a giant dinosaur.