Ruins

Surrounded by low rise buildings and partially converted into an auto body shop, this marble archway is the only vestige of a forgotten Manhattan estate.

The Los Angeles flood disaster that took 400 lives and ended the career of William Mulholland.

The site of many battles and tragedies, including the 40 maidens who leapt into the sea.

Site full of incredible prehistoric paintings and archeological findings.

Hauled from the water's depths, Henry VIII's flagship is preserved in this capsule-shaped museum.

This partially buried wreck is one of the most complete of its kind but is only revealed when the sea allows.

The loneliest island in New York.

Forgotten German bunkers in China create a sharp cultural contrast.

Law-protected wreckage serves as a peculiar memorial for an almost forgotten World War II tragedy.

This hospital once pioneered the use of electroencephalograms, but fell into maltreatment, abuse, and eventual abandonment.

A formerly abandoned mental institute, now back in business.

A Marxist summer camp full of fantastical statues lies tucked away and forgotten in the forests of Moscow.

The rusted remains of a victim of Hurricane Ike.

Picturesque ruins once held off mighty armies.

A Balinese resort, empty and trapped in time.

No telescopes, no power, no gift shop: The Observatory of Chichen Itza, one of the world's oldest observatories, takes astronomy back to basics.

A cemetery and the town it served sinks beneath the sea during the volcanic birth of Mt. Vulcan.