Visitors to this Belgium graveyard are greeted by the grieving stone parents of the young men lost to war.

These remote Florida islands have a history of sea turtles and sunken treasures, and one of the world's largest coastal brick fortresses.

Ruins of a Carnegie family mansion on Cumberland Island.

A small island less than half a mile from Venice is a forbidden island with a dark and twisted past.

Remains of an abandoned coral city.

Once the most densely populated place in the world, this island is now a ghost town.

Three bridges and one giant canyon make up this fantastic Spanish settlement.

Considered the birthplace of the Copper Age and Bronze Age, the river is tinted red from 5,000 years of mining.

This small chapel is built of human bones and decorated with a golden skeleton.

A submerged village appears when dam levels drop.

The oldest Roman lighthouse still in use.

This rough experimental house was created by flooding a dirt hill with concrete.

This abandoned naval battery stood at the ready as recently as the 1980s.

Remarkably intact Roman stone fortifications have encircled this Spanish city for centuries.

A small church ornamented with medieval erotic sculptures.

The gaunt visage of this angular Christ giant is enough to put the fear of God into all who see it.

This religious complex carved into a cliff is steeped in legends of miraculous stags and the Holy Grail.

Abandoned 18th century weapons factory in the Aezkoa Valley.