This trio of neolithic stone monuments are fabled to be a king and his knights that were petrified by a witch.

A petite castle folly in the English countryside.

Erotic art covers the walls of the largest ancient pleasure palace.

Synagogue built from the stones of Solomon's temple contains the golem of Prague.

Famously misunderstood wonder of the ancient world

The largest stone circle in the world has ended up bringing up more questions than it has answered.

These picturesque ruins crumble beautifully into the ocean.

A island reachable by a causeway at low tide is possibly one of the earliest Western European locations to be identified in text.

This historic Victorian hotel has a scandalous history of affairs and murder.

The beauty and the beast of hydraulic mining is on full display at this California Historic State Park.

This automated sculpture of two men peeing will spell out text messages with their micturition.

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

The granddaddy of English geoglyphs dates back to the late Bronze Age.

An underground city of salt.

Costumed elves and mountain bikers co-exist peacefully at this abandoned Christmas-themed adventure park.

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

The only road through the heart of Glacier National Park.

Small Nevada town embraced its designation as the "Armpit of America" with an Old Spice-sponsored festival.

Aqueducts have dramatically changed this old lake, now home to tufa towers and its very own species of tiny brine shrimp.

Macabre astrological automaton clock dating to the late 1400s.

An Italian crevasse filled with abandoned buildings gives visitors a look at the world without humans.

San Francisco's newly reopened hands-on science museum.

This concrete tangle of square pipes has stood as a proud thorn in the city's side since the '70s.

Staircase winds down the side of Telegraph Hill through gardens, wild parrots flying overhead.