Seller of surplus nuclear research materials.

A warm desert spring holds one of the rarest species on earth.

Thousands of mounted insects, and some live ones, hide within an otherwise ordinary shopping mall.

A cave's rare beauty held a cavernous secret hidden underground.

The garage at the childhood home of Steve Jobs was a hangout for the founders of Apple, even if they never built computers there.

One of the largest free-standing structures ever built, this dirigible hangar is now simply a giant skeleton.

Hopeless romantics will swoon over the sweet story behind this bright and colorful home.

This museum boasts the ninth-largest collection of insects in North America.

The largest Star Wars collection in the world is its own galaxy of collectibles.

A B&B on a Victorian lighthouse station in San Francisco Bay.

A working model of the entire San Francisco Bay and much of the Sacramento River Delta, complete with regular tides that change every 14 minutes.

A sign at the end of the Santa Monica Pier marks the traditional end of the legendary American highway.

A trash dump made beautiful by nature's power.

Inside this small museum resides a strange mix of miniature collections passed down over time.

Natural catch-basin rocks covered in thousands of drawings spanning many millennia.

Steep canyon walls hide a forested oasis in the West Texas desert.

The highest point in Texas is capped by a big silver pyramid.

Two massive and unstable sinkholes are yearning to unite, and their consummation could be catastrophic.

The highest point in Louisiana, Driskill Mountain at 535 feet above sea level.

A collection of over 15,000 zines works to preserve DIY publishing culture.

The encased skull that is widely believed to belong to St. John the Baptist.

The sunken structure looks like the victim of a catastrophic flood.

A unique zoological park home to over 30 species of wild cats, both big and small.

Built by prisoners of war, the largest small-scale model ever built includes eight miles of tiny streams that now sit abandoned.