A beautiful and abandoned New York subway station from 1904, complete with chandelier.

World's first "penitentiary," meant to be humane, drove men insane.

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

A gargantuan crystal kingdom.

Hundreds of glow-in-the-dark objects light up a museum in a historic zinc mine.

This massive boulder is either a unique rock formation created by glacial melt or a magic energy vortex.

This abandoned Poconos resort is haunted by a history of kitschy romance and a violent fugitive.

This huge, disused viaduct is now a crumbling concrete underworld of covered in years of graffiti.

Once the world's largest reinforced concrete structure, this abandoned bridge now beckons urban explorers.

The haunted reputation of these abandoned Colorado train tunnels is probably not helped by the terrifying spiked fence.

A historic covered bridge is but one example of an oddly prevalent American urban legend.

This Tennessee museum is dedicated to a tragic railroad hero who inspired the famous ballad that bears his name.

The site where Confederate president Jefferson Davis was defeated has been marked with a bust... that leaves that part out.

One Confederate statue that accurately reflects the ugliness of its subject.

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

Just a few miles from downtown Atlanta is a trail covered in a crazy collection of outsider art.

The beauty of urban decay, hiding some dark secrets.

A plaque immortalizes the spot where the early American spy said his famous last words: "I only regret that I have but one life to lose for my country."

Hordes of precariously balanced stone figures crowd the shores of the Hudson River.

The one-time epicenter of American songwriting is now a little remembered Manhattan commercial block.

Where now stands a 42-story condominium tower of marble, glass and steel was once the central market of New York’s slave trade.

Salute the leader of the proletariat.

The notorious headquarters of a corrupt political machine.

The oldest living tree in Manhattan comes shrouded in sinister legend.