This intricate Hindu temple is the largest of its kind outside of India itself and was constructed like a giant puzzle.

Bad farming practices caused this unnatural natural wonder.

They call this long foot bridge a swinging bridge, but really it's the bouncing you have to watch out for.

One of the largest-ever mental hospitals now sits abandoned, surrounded by 25,000 unmarked graves.

Ruins of a Carnegie family mansion on Cumberland Island.

Crumbling ruins mark the site of a couple's grisly murder in the woods.

The beauty of urban decay, hiding some dark secrets.

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

This quirky curiosity shop takes its cues from the world's bazaars.

A bizarre roadside attraction and the first instance of miniature golf in the world.

Tour the sci-fi-esque reality of governmental disease management.

A collection of haunted objects and macabre oddities under one roof.

Experience a charming 1930's version of "infotainment."

This once bustling boomtown hotel is now the hottest spot in Nevada for ghost hunters.

An elaborate gift from Claus Spreckels is now a piece of San Francisco history.

The overgrown ruins of a once thriving World War I-era copper mine.

This 19th-century church is now a popular roller rink.

The only museum of sake in the United States is nestled in an unlikely California college town.

One woman's Viking Castle on Lake Tahoe.

The tragedy of the Japanese internment camps is remembered here by a stark "Soul Consoling Tower."

Neoclassical Revival mansion and set of horror cult classic Phantasm.

This dark, quiet forest on the outskirts of San Diego is dense with rumor and lore.

The liveliest ghost town in the state.

Beautiful Victorian buildings from L.A.'s forgotten architectural past.