Khmer Rouge's high security prison.

This palatial botanical garden is home to one of the largest pipe organs ever installed in a private residence, and a piece of Wood's cycad.

Memorializing an American tragedy of massive proportions.

An abandoned stretch of highway, deteriorating next to the operational one.

The oldest farmer's market in America is so ancient it was approved by the King of England.

A failed piece of Orientalism has become the proud symbol of a community.

This lush forest valley was once mined for lumber to the extent that it was once nicknamed "The Pennsylvania Desert."

A toxic ghost town sitting atop a massive coal fire.