A chain of 16 wondrous lakes formed as a result of the gradual dissolution of soluble layers of bedrock.

Site full of incredible prehistoric paintings and archeological findings.

A sculpture that resurrected the only tree standing following the devastating 2011 tsunami.

This revered mutant tree was felled in an act of ecoterrorism leaving a legacy of myth and possibly murder.

An abandoned horticulture institute gloomily presides over rows of derelict and vine-wrought greenhouses.

Golden Gate Park's historic collection of plants.

The glowing blue Nymphaeum of Emperor Tiberius.

The only pollutant in the clear blue water is sunscreen.

An ethereal glowing blue ocean cave in Croatia.

This astonishingly geometric cave has inspired everyone from Jules Verne to Pink Floyd.

England's most notorious suicide spot.

Some of the clearest water anywhere in the world.

The world's brightest bioluminescent bay.

Amazing and mysterious Neolithic settlement on Scotland's Orkney Islands.

An ancient Viking village in North America that predates Columbus by 500 years.

In the most arid desert on the planet, the world's leading telescope allows astronomers to see more than has ever been seen before.

Despite violent work crews and massive delays this abandoned canal tunnel was built to last into the modern day.

These termites have an large and deadly abode—impressive by day, dazzling by night.

The true jewel of Africa's west coast known as "Africa's Last Eden."

This beautifully deceptive waterfall is something far different from what it appears to be.

The largest free-standing aquarium in the world resides in a hotel lobby in Berlin.

One of the deepest indoor swimming pools in the world.

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

Thousands of Haitians travel to the waterfalls to ask the Virgin Mary of Mount Carmel and her voodoo counterpart Erzulie for healing in a yearly pilgrimage.