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

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

Ancient cliffs resembling a kilt on Scotland’s second-largest island emit an entrancing sound.

One of the oldest scientific gardens in Britain, containing more than 13,302 plant species in its core collection.

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

360° views of the city plus five floors of optical illusions and hands-on science.

This 17th-century street hidden beneath Edinburgh was once a breeding ground for the black death.

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

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

"Gnome Chomsky" was once the largest gnome in the world, but is now simply tall for his kind.

Hundreds of numbered stakes hidden in the woods mark the graves of the lost souls of a nearby asylum.

This former rail stop in Utah was abandoned, repopulated by some nostalgic friends, and now is home to a single DIY aviator who lives in a hangar.

A 90-foot-tall psychedelic "tree" on the side of the highway has baffled passersby for decades.

Incredible sculptures inspired by obscure passages from the Bible.

This raised bulls-eye visible from space was the subject of an intense geologic controversy.

Pyramid home to an obscure religious group that practices modern mummification.

Here lies Lilly E. Gray, an alleged "victim of the beast," but the reason long remained a mystery.

Bizarre lunar-like landscape with thousands of large stone "hoodoos."

A sculpture for the sun and stars, created by Nancy Holt.

A house carved into a rock in the 1940s.

This historic railway museum may have lost its passengers but not its love for trains.

A hidden garden of stones engraved with scriptures, a Joseph Smith Sphinx, all carved by one man.

The fifth-longest natural arch in the world, and the longest outside China.

A faux European lane smack dab in downtown L.A.