The site of a 19th century "dream city" that almost rivaled Chicago before being swallowed by the Indiana sand dunes.

You'll need cowboy boots to trek to this old-fashioned saloon nestled in a giant natural cave.

An oddities shop packed with twisted treasures inspired by Oscar Wilde and Edgar Allan Poe.

Labor provided by Great Depression-era programs restored these 25,000 acres in Tennessee.

Exact replica of the ancient monument, but much, much lighter.

A dark, dank room in subterranean Manhattan was the site of a ghastly murder.

The old Route 66 town straddling Texas and New Mexico died along with the Main Street of America.

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

The remains of an abandoned dinosaur theme park litter the woods just off the highway.

A tribute to Ponce de Leon's supposed quest for eternal youth.

Unique antiquarian shop specializing in globes, maps, and prints.

Collection of trolley cars in the woods represent one man's attempt to preserve transportation history.

Her final resting place was intended to be modest and private, but the power of her popularity continues to draw visitors.

The oldest surviving synagogue in New York City is now a soaring art space.

A tiny piece of the Moon is embedded in this stained glass masterpiece.

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

A house filled to the brim with oddities and curiosities.

Welcome to old Florida, where a 1940s mermaid show is still enchanting visitors.

A look into the Church of Scientology's deeply unfavorable view of psychiatry.

A hidden network of subterranean passageways lies tangled beneath Indianapolis' bustling City Market.

Odd outsider art installations surround a Gold Rush-era ghost town.

Olfactory delights in San Francisco's Botanical Gardens.