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.

A complicated contraption for telling time by the moon.

Numberless clock creates a meal of time for the dreaded, insectile Chronophage.

Scattered throughout London are ancient remnants of the city's former bounding wall.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

This massive collection of British military artifacts includes the heartbreaking personal letters of the men in the trenches of WWI.

The curios of pharmacist and collector Henry Wellcome.

The anatomical-pathological collection of a man who changed surgery.

A naturally mummified 2,000-year-old man.

A bizarre roadside attraction and the first instance of miniature golf in the world.

This funicular railway rumbles along for a mile up the nearly vertical face of Chattanooga’s Lookout Mountain.

Labor provided by Great Depression-era programs restored these 25,000 acres in Tennessee.

Moonbows over Kentucky.

The highest point in Tennessee, Clingmans Dome bears witness to the ravages of one type of insect.

Enormous lake at the bottom of a unique cave system.

Mile-long cave system near Great Smoky Mountains.

The secret city built by the Manhattan Project.

Better known as the "Body Farm," this unique research facility has been studying how human bodies break down since the 1980s.

Home to the deepest rift anywhere on Earth.

The world's first nuclear power plant is open to visitors looking to role-play a meltdown.

A museum dedicated to the history and art of staying clean.