A plaque marks the former home of Käthe Paulus, an aerial acrobat who invented the modern folding parachute.

An abandoned village where the ruined foundations cling to a cliff.

This rare surviving broch is one of Scotland's most impressive Bronze Age structures.

An unexpected ghost village lurks on the southeast coast of Tenerife.

Along this wire fence, travelers have been leaving a particular memento since 2012.

This no man's land slicing through the island is strewn with abandoned relics of another time.

Rusted structures stand like ghosts of Cyprus' 6,000-year-old copper industry.

The ancient mosaics here are considered among the finest in the world, and serve as a stunning record of Greco-Roman daily life.

A winding, blood-red tunnel of hardened lava navigable by foot.

A whimsical and twisted animatronic monster tour beneath the streets of Berlin.

Lava stone structures possibly dating back to the 19th century may have been a stopping point for voyagers between ancient Egypt and the Mayan Civilization.