A young woman's senseless murder led to the controversial psychological theory of the "bystander effect."

A museum in Mississippi celebrates the history of Coca-Cola and the man who brought it to the masses.

The most remote tree in the world is more than 170 miles from its nearest neighbor.

Suspended above the ground in a thicket of towering Georgia trees is a modern architectural wonder.

More gold than anywhere else, ever.

A museum preserving one company’s history of preserving food.

Colloquially known as "the lynching memorial," this is the United States' first memorial to the victims of racial terror at home.

It marks the spooky spot where the bodies of two young boys were found in the 19th century.

This beautiful building in the heart of Manhattan's Financial District was empty for decades.

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

Walk through row upon row of manicured miniature trees at the United States' largest bonsai nursery.

An abandoned suspension bridge on the Falkland Islands is crumbling into the water.

Railroad came. People came. Railroad left. Town died.

The fairy tale castle of the "fairy-tale king."

One of the last few period-correct, hand-operated canal locks in the country.

This church houses the “incorrupt” body of its founding Bishop.

One of the Cemestos prefab homes built to secretly house thousands of Manhattan Project workers.

In Chicago, a pizza-enthusiast has opened a museum dedicated to the history of pizza.

The home of possibly the least-loved U.S. president stands as a sort of unpopular Monticello.

Couple's personal collection of pinball machines turned public pinball museum.

A Museum of Holography frozen in 1974.

Rifle through images of skyscrapers, Worlds Fairs, and more in the largest public postcard repository in America.

You can take a class, browse the library, or visit the lavish lair of an international men's humor society.

This largely forgotten piece of Cold War history stands hidden in the woods just north of the Mississippi Gulf Coast.