An ancient Scottish rock formation said to be the gravesite of a giant remains ensconced in legend and intrigue.

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

The fountain marks the area where hundreds of accused witches were burned at the stake.

Ruined 11th century abbey built by King David I in Edinburgh, Scotland.

A 30-acre garden inspired by the principles of modern physics.

The most iconic structure in Scotland has been home to bishops, colonels, and Sean Connery characters.

These fantastically named natural pools look like something out of a Scottish myth.

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

These sculptures of various animals adorn the building that houses one of the capital's least known museums.

Standing in for the first ship to navigate the Northwest Passage.

More than 700 species live within this murky marvel of a swamp on California's coast.

An abandoned boat that's been stranded mysteriously for decades.

The first life claimed by this record-breaking peak wasn't lost to exposure or a fall but rather lightning.

A sudden forest of traditional Papua New Guinean art works is hidden in a corner of Stanford University.

The lighthouse central to the 1980s horror classic "The Fog" is, in fact, located in one of the foggiest areas of the Pacific Coast.

A world-class observatory in the California desert.

The haunting ruins of Jack London's dream house.

Rodin's famous depiction of Dante's 'Inferno', amidst a sculpture garden of many of his other works.

An extensive collection of ancient Egyptian artifacts and mummies.

Trails through lava-carved tube-caves display sparkling bacteria and a rich history.

One of the most scenic stretches of road in America winds between some of the country's oldest trees.

Quite simply the largest tree in the world (by volume).

These delicate buggers are some of the rarest fossils that have bubbled up from the Tar Pits.

Under the right circumstances, this waterfall in Yosemite briefly turns a luminescent fiery orange.