This abandoned motel doesn't welcome guests anymore, but decay and a creepy atmosphere still call it home.

Its dark depths conceal millions of rare, delicate crystal formations.

Nose around a unique collection of more than 300 natural aromas used to craft perfume fragrances.

Haunting and beautiful trees, doomed to die.

The California capital city once stood 10 feet lower than it does today.

A free, public museum dedicated to the fascinating science of sight.

This corn maze so big you may want to pack a lunch, and possibly a flaregun.

This lesser known Hearst estate is a fairytale village built from the stolen bones of historic European buildings.

A raised boardwalk winds through a thicket of stunted, century-old trees no more than nine feet tall.

360-degree virtual reality chamber physically immerses scientists into their data.

An abandoned, unfinished mansion on grounds strewn with lava rocks.

A deserted hodgepodge of experimental structures designed by nearby university students.

This impressive tunnel was dug entirely by hand over the course of 36 years.

A popular tourist cave with a dark past.

A large instrument played by the wind.

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

A modern day curiosity cabinet.

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

A hidden subterranean installation offers a view of the sky.

With the touch of a button, you can read a randomly selected short story.

San Francisco Bay's ghost town.

The "Fun Spot of the Desert" is now a haunting ruin, and a reminder that putting a water park in a desert is a bad idea.

The remains of a ruined mansion memorialize the 1906 earthquake.

Abandoned bridge hidden deep in the San Gabriel Mountains.