This Nazi ruin was the site where Hitler was almost blown up by a suitcase bomb.

Ruined pieces of stone and a swimming pool are all that remain of an amusement park swept away by a flood.

An 1870s ranch for pioneers, rodeo stars, and divorcees was abandoned and left for dead, until the city reopened it for exploration.

The remains of a town so thoroughly destroyed by French forces that the citizens simply left.

An extraordinarily ornate museum in San Diego holds wondrous anthropological treasures.

A chilling disappearance (and rescue) of a child uncovers a geological mystery.

Heron, whitewater rapids, and urban industrialism all add to the beauty of this concrete nature walk.

Once an ambitious nature spa, these forest ruins now provide a serene monument to failure.

Bizarre dirt trail winds a narrow path above the tree line.

The Emperor Tiberius' palace of debauchery.

Home to Hollywood history and a very special salt crystal.

A prehistoric landscape hidden in the cliffs of Maha'ulepu.

A ship that lived many lives under many names is now known merely as the "Ghost Ship."

A cave interior in the shape of the ancient rhinoceros, created by lava cooling around its carcass.

A couple turned their front yard into an artistic masterpiece.

A former insane asylum despised by Nelly Bly and Charles Dickens is now fashionable apartments.

Cheap pizza and all of your naughty bedroom needs housed in a stunning example of Art Nouveau architecture.

Site full of incredible prehistoric paintings and archeological findings.

This "zoo" is a cross between a junkyard and a sculpture garden, featuring animals you won't see anywhere else.

A lover's walk between hilltop towns, decorated with graffiti love notes.

This rugged area of red rocks and arches is often considered one of the most beautiful places on Earth.

Saintly bones pressed into a wax effigy of a Catholic superstar.

This cave holds a surprisingly colorful variety of geological oddities.

An archaeological site believed to be the burial place of the "mother of us all."