Toxic waste disaster that founded the Superfund program.

The medieval prince founded the first library in Ukraine at Saint Sophia's Cathedral where he was interred.

A tribute to a Ukrainian heroine who went undercover and killed several Nazi operatives.

One of the largest remaining ancient burial mounds of the 10th century.

Sculpture that doubles as a time capsule so that life can survive radiation outside Chernobyl.

One of the most poignant ruins of the Chernobyl nuclear disaster, the local football team's stadium has been quickly reclaimed by nature.

This attraction was abandoned after the Chernobyl disaster.

This 13th century Orthodox monastery is built right into the Moldovan cliffside.

These bronze sculptures can be found in an isolated patch of bush in Tasmania’s highlands.

The mysterious wonder of an underground waterfall is illuminated by multicolored lights.

A remnant of the last Ice Age, this lake is surrounded by fascinating rock formations.

A stunning, abandoned limestone quarry in southern Indiana provided the stone to erect the Empire State Building.

An underwater restaurant, surrounded by a coral reef.

The remains of a 19th-century school and living quarters are perched atop a mountain surrounded by a thick tropical forest.

Natural time capsule containing an alien ecosystem.

This remote Scottish isle is only inhabited by seals, birds, and the memory of a tragic settlement.

This crescent-shaped sliver of sand is a magical haven for a herd of feral horses.

Fascination continues to surround one of history's most infamous shipwrecks.

Divers can encounter an abandoned warship encircled by a giant kraken submerged in the British Virgin Islands.

A mountain of conch shells created by centuries of fishermen.

This huge pile of volcanic boulders hides a stunning network of secret grottoes.

A sharply wedged sundial marks the point at which each day in the United States begins.

The world's brightest bioluminescent bay.

This chapel on a cliff is renowned for its healing powers and was founded on the site of a supposed divine intervention.