Most polluted lake in the world, used as a radioactive dumping ground for years.

This alley in downtown Chicago held the bodies of over 600 people after the fateful Iroquois Theatre fire.

The worst flood disaster in Welsh history might have been a lot worse if it had not happened on movie night.

The biblical sculpture honors those who lost their lives, homes and communities to the Chernobyl disaster.

Urban explorers embraced America's now demolished first suburban mall, south of Chicago.

An Italian restaurant became a rock-and-roll hangout and the lair of the "Hollywood vampires."

At 1,732 feet above sea level, this spectacularly isolated yet surprisingly bustling bar is the highest pub in Britain.

This remarkably well-preserved mosque stands amid an 11th-century caravansary.

Over two million dolls have been healed during this hospital's century in business.

It's hard to believe the dizzying patterns covering this abandoned mine are completely natural.