This soda factory is one of the last in America to use real cane sugar despite the protestations of Dr Pepper.

This geothermal hot spring hides beneath a slowly growing mineral dome.

This stone is a marker of one millionaire's personal vendetta against gravity.

The Battle of Atlanta in 360 degrees, featuring a corpse that bears a striking resemblance to Clark Gable.

An underground magnet for ever-changing street art.

Healing Springs that once ran red with soldiers' blood.

This massive store is home to an eccentric collection of vintage, retro, and peculiar goods.

Tour the sci-fi-esque reality of governmental disease management.

This futuristic German spa allows visitors to float in a pool of salt water while zoning out to underwater techno.

A railroad tunnel that, upon its completion, was considered one of the engineering marvels of the modern world.

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

The remains of a community that was forced to move for a dam that never materialized still rot in this Pennsylvania park.