This abandoned factory on the Hudson River once churned out a million bricks a week.

The remains of what was once the world's steepest passenger funicular.

This old cement mine has been used as everything from a mushroom farm to a recording studio.

This stone gatehouse was once the entrance to a historic mountain resort, and it had a cameo in a cheesy cult horror movie.

This once-private estate is now a dreamy, meditative garden that's open to the public.

The life of one of FDR's possible mistresses is preserved in her palatial Hudson Valley mansion.

The oldest continuously inhabited street in America.

An unassuming island in the middle of the Hudson that hosts campers, including Aleister Crowley.

"A hideous albatross in the Hudson River Valley."

One of the U.S. Forest Service's only mansions is outfitted with a dinner table for floating food.

A small car graveyard sits in the shadow of the famous Cadillac Ranch.

This water tower slanted at an uncomfortable angle off the old Route 66 was an ingenious marketing ploy.

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

An homage to everyone's favorite prehistoric cartoon family.

A collection of anti-communist sculptures stands watch in the Mojave Desert.

A volcanic tunnel illuminated by natural skylights offers a shaded respite from the desert sun.

This giant temperature attraction created some giant electric bills.

The oldest lawn bowling club in the United States.

One of the most scenic stretches of road in America winds between some of the country's oldest trees.

A collection of colorful dinosaurs hidden in an actual rainforest.

According to legend, this rock represents a young girl trapped by an evil ocean spirit.

On the Oregon coast there is a natural hole that seems to be draining the sea.

Ride a mechanical corn dog at the alleged birthplace of America's favorite deep-fried wiener.

100-year-old shipwreck you can walk up to at low tide.