I Street Bridge is the heaviest swinging center bridge in the United States.

A mesmerizing disco ball-like sculpture along the Sacramento River Walk.

Art Deco stylings conceal the true nature of this bridge.

The California capital city once stood 10 feet lower than it does today.

Where the first "expert riders, willing to risk death daily" for the Pony Express were recruited.

This 15-story mural celebrates the 50th anniversary of the musician's iconic "At Folsom Prison" album.

The capitol city's oldest existing cemetery.

Puzzling...this tree looks like an assemblage of dismembered monkey limbs.

An eccentric home stands out in an otherwise average neighborhood with mosaics, mini topiaries, and kinetic sculpture.

A tiny survivor of the Donner Party disaster.

A working miniature city designed to teach kids about safety and presumably city planning.

This 19th century hydroelectric powerhouse was the first of its kind.

This museum looks at the history of one of America's most famous prisons and most beloved albums.

This former boomtown "island" is now submerged below Folsom Lake.

Dentist's hated concrete colossi are now beloved icons of the community.

Eclectic collection of dark and macabre antiques.

Its dark depths conceal millions of rare, delicate crystal formations.

Hidden beneath a lake for decades, this brutalist mine has now emerged from beneath the receding waters.

A cozy bookstore is tucked within an old gold mine shaft beneath the cafe and ice cream shop.

The huge granite obelisk that towers over a small California town.

A dwindling menagerie of anthropomorphic oil derrick animals still dot the barren California landscape.

In the country around Buttonwillow, California, a marker commemorates a revealing moment in the story of a water colony from the fictional Kcymaerxthaere that sought independence.

Remnants of the United States's largest accidental oil spill still mar a California valley.