A museum designed by and dedicated to P.T. Barnum in the town where he is buried.

Two thousand artifacts from around the world collected by one woman who loved to travel.

The ghost town that ended up on Ebay.

The neon signs from Las Vegas' past find their final resting place at this unusual graveyard.

A palatial sculpture park was built illegally and in secret by a self-taught artist over 36 years.

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

An emerald-green grotto just a short trip from Austin.

A theme park that suffered massive flooding during Katrina was abandoned, and now proves irresistible to trespassing explorers.

A hotel and restaurant serving as the mecca of kitsch.

Aqueducts have dramatically changed this old lake, now home to tufa towers and its very own species of tiny brine shrimp.

A trash dump made beautiful by nature's power.

It's not your typical library, memorial, or book store.

Every year, over 25,000 monarchs overwinter in Pacific Grove.

A "gravitational anomaly" located in the redwood forests just outside of Santa Cruz, California.

The fossilized remains of ancient California redwoods.

The haunting ruins of Jack London's dream house.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

San Francisco Bay's ghost town.

Discover for yourself what Herb Caen referred to as "the best kept secret in the Bay Area."

An artsy hidden staircase leads to breathtaking views of San Francisco.

A huge musical instrument played by the ocean.

An "anarchical" no man's land, complete with garbage sculptures and a hobo-run "Landfillian Library."

The memorial to the victims of the Jonestown Massacre carries the names of 918 lost, including one name people wish wasn't there.

An amazing collection of fantastic reptiles, amphibians, spiders, and insects.