Rare mummified forest could offers a glimpse into how our environment has been changed by humans.

The remote graves mark the mysterious deaths of four 19th century explorers.

Dinosaur eggs were first discovered at these fiery red cliffs.

One of the most extensive and well-preserved collections of dinosaur footprints in North America.

Sandstone rock formations that look like they belong on the cover of a progressive rock album.

Dig for your own trilobites in this goldmine of invertebrates.

Giant pinnacles in the sun-scorched lands of Southern Utah have been nicknamed "white ghosts."

A once-booming Mississippi River town with a history of racial violence is now eerie and mostly abandoned.

Twice a year, this road is closed off to allow for the migration of thousands of snakes, reptiles and amphibians between cliffs and a swamp.

This rickety old shed hides a trove of secondhand literary treasures.

"The greatest unknown literary treasure in Los Angeles."

A common entry point to the Griffith Observatory trail holds its own wonders.

Everyone remembers Laurie Strode from Halloween, but this is the house where most of the blood was shed.

A ghost town at the airport is now a refuge for blue butterflies.

"Looks so real, it's scary!"

One man's vast collection of artifacts and ephemera from matchbooks and postcards to vintage neon signs and cars.

A hospital closed seemingly in the middle of operations, leaving behind fodder for horror films and ghost hunters.

This weird abode has inspired everything from the "House On Haunted Hil" to a robot hunter's pad.

Medical and zoological curiosities for sale.

It should come as no surprise that the best view of the Hollywood sign is from Batman's lair.

The legendary building that needed ghostly approval before being built.

Remants of foundations, streets, and streetcar tracks inhabit the cliffs where a landslide occurred in 1929.

This iconic L.A. bookshop is housed in an abandoned bank—both symbolic and chic.

During prohibition, corrupt city officials ran drinking dens under the streets of Downtown Los Angeles.