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

The oldest operating apothecary in the US has treated everyone from Thomas Edison to Mark Twain.

A little piece of the Shire is hidden behind a plant nursery in Port Orchard, Washington.

Trails through lava-carved tube-caves display sparkling bacteria and a rich history.

A meditative space out of a fantasy story.

An enormous park-like oasis, full of famous Chicagoans' graves.

A masterpiece of LGBT art has been restored in what may now be the most valuable restroom in America.

The abandoned husk of a mental institution that failed to save a Jazz Age icon still sits nearly unchanged.

The only rotating bar in New Orleans has been slowly spinning since 1949.

Canyon walls shrouded in ferns.

Enormous piles of historically significant stones, dumped by Congress in a forest, and abandoned for 60 years.

A particularly creepy abandoned hospital that sparks interest for lovers of the supernatural.

This charmingly homemade amusement park has been growing for 40 years.

A celebration of capitalism in Midtown.

A mysterious monument meant to be a guide into "an Age of Reason" was destroyed after an apparent bombing.

A clear blue swimming hole with hidden caves, still unexplored.

See massive fossils that are over 200 million years old in northeastern Arizona.

The second oldest continuously operating bar in Louisiana.

This former lieutenant governor's home is brimming with curiosities.

At this Denver landmark, the meals are compulsory, the sopapillas are complimentary, and the insanity is everywhere.

The "Seinfeld" diner.

This Los Angeles animation studio is keeping the wonder of stop motion puppetry alive.

This serene oasis in an affluent Los Angeles neighborhood holds some of Gandhi's ashes and got Elvis into Eastern Philosophy.

An abandoned castle owned and ignored by Masons carries a cursed history.