Golden Gate Park's historic collection of plants.

Not merely a museum – but a whirring powerhouse that offers a subterranean peek into the heart and soul of cable car operations.

San Diego's most historic and haunted home.

Relics of the 1894 Midwinter Exposition continue to delight visitors today.

There is no trying to fall in love with this Star Wars fountain, you just do or do not.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

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

This stone incorrectly marks the 35th parallel, causing some territorial kerfuffles.

Designed by Maya Lin, the memorial honors 41 individuals who died fighting for equal rights between 1954 and 1968.

Oldest unrestored plantation house in America that is open to the public.

This psychedelic tromp l'oeil seems to be beckoning drivers to crash into a wall.

A true roadside icon standing on the same plains that the herds once roamed.

Three legendary, living albino buffalo roaming their pastures for all to see.

A waterfall 600 ft. inside a mountain, once the bane of gold miners, is now a spectacle of nature.

A fitting attraction for the corn capital of the world.

The granddaddy of all tourist traps, built on ice water, jackalopes, and a giant dinosaur.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

A town honors its legacy of traditional American Indian pipe carving with one gigantic pipe.

Elaborate drama imparts an appreciation for 19th century hardships.

This massive roadside mascot was the first version of the giant to illustrate his butt.

Ever wanted to can Spam?

A giant pair of thick black glasses mark the tragic demise of a trio of rock and roll legends.

The grandson of a Kiowa chief created what has become the iconic symbol of a city on the Plains.

Massive still life just off the highway in Kansas.