San Francisco's oldest surviving monument and meeting place for 1906 survivors.

San Francisco's urban bison herd has persisted in the face of extinction, development, and disease.

A nondescript building that's been functioning as a speakeasy for nearly a century and a half.

The tea room that pushed the boundaries of adorable straight into... we can't find the words.

Come for the pizza, stay for a performance on the world's largest theater pipe organ.

A former department store turned into a quirky restaurant.

Though tiki culture has gone in and out of fashion, the Tonga Hut has always been flying the flag in Los Angeles.

A faux European lane smack dab in downtown L.A.

An outdoor sculpture park of giant pink robots and post-apocalyptic Christmas scenes.

A one-of-a-kind collection of a unique medium.

Strange red rock formations that have been attributed to a higher power for hundreds of years.

The "world's biggest dinosaur" once housed a creationist museum in its abdomen.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

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

This elaborate towering structure was once famed for its revolutionary height.

Dr Barnes' $25 billion private collection of art and arboretum.

Huge masonic hall in Philadelphia with lavishly themed rooms.

This charming colonial alleyway is one of the oldest continuously used residential streets in the U.S.

Tour the dark and beloved poet's former cobwebbed basement, which may have inspired "The Black Cat."

A layered tribute to the work of mosaicist Isaiah Zagar.

The world’s first penitentiary, meant to be humane, drove men insane.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

An historic and oft-filmed spot for musclebound iron pumpers on the Pacific coast.