This dramatic landscape hidden on the Isle of Skye looks as though you've stepped into the magical realm.

The last inhabitants of one of the U.K.'s most remote islands were evacuated in 1930.

A collection of housewares from recent Irish history adjoined by a tower from ancient Irish history.

A standing relief of a Norman knight whose posture marks him as a Crusader.

This Irish show cave is said to have been the site of a Viking massacre that claimed 1,000 lives.

The oldest inn in Kilkenny was established by the first convicted witch in Ireland.

This ancient Irish religious site is covered in ancient carvings, many of which have barely aged.

Huge standing stones mark a site of megalithic mystery.

Local legend says the remains of Father Christmas lie within the medieval grounds.

A gothic palace of endless stalagmites and pseudoscorpions waits within one of the world's most beautiful caves.

A whimsical, punny collection of "fence art" outside the tiny mountain town of Baker, Nevada.

The longest living non-clonal organisms on Earth.

This crumbling stump is all that remains of what was once thought to be the oldest living organism.

These huge stone ovens in the desert fueled the Nevada silver boom, and may have also been a hideout for outlaws.

Rich red almandine gemstones are waiting inside the volcanic rock strewn across this eastern Nevada hillside.

These 40,000-year-old stenciled hands are older than the famous cave art in France and Spain.

This London pub hides a peculiar secret: a recreation of the rooms shared at 221b Baker Street by Sherlock Holmes and Dr. Watson.

The signs of a long buried road can still be found hidden beneath a London sewer grate.

An easily overlooked stretch of ornate window fronts and gaslight lamps that could be right from the pages of Dickens.

The largest earthwork effigy in the world.

Rippling sand dunes frozen in the Arizona rock.

Less a museum than a bizarre fantasy world created by artists and engineers.

Wondrous sandstone hoodoos where Native Americans collected clay for pottery, 9,000 years ago.

This remote castle was built to be a wealthy businessman's palace of vice but is now simply a historic vacation cottage.