Fortifications built for a Soviet invasion that never came now sit abandoned in a losing battle against nature.

These abandoned Cold War-era bunkers are now a designated refuge for endangered bat species.

Risk arrest while partying to fund art.

A Lycian city of the dead carved into the hillside of Southern Turkey, complete with startlingly human touches.

In this historic region, homes and churches are carved into ancient volcanic rock formations.

This multisensory alley has the ability to remind bustling citygoers to stop and smell the roses.

North Africa's first museum of its kind preserves the culture of Moroccan women and their artistic achievements. 

An abused and forgotten metropolis, abandoned for centuries.

Underground monastery and fortress.

The decaying remains of a once-luxurious Soviet spa town.

This semi-spooky remnant of an abandoned hotel provides fantastic views.

No one is quite sure of the origins of these idyllic natural hot springs at an abandoned mountain resort.

The ruins of Japan’s premier water brothel.

The ruin of a Japanese love hotel almost completely overgrown with brambles.

This ruined Japanese stripclub sits half burnt to the ground.

A culturally significant rural temple in the beautiful mountains of Itoshima.

An exquisite tunnel of cascading flowers.

This beautiful natural train tunnel is said to grant the wishes of visiting lovebirds.

The romantic botanic tunnel feels like a well-kept secret.

One of the oldest churches in Romania is believed to have been built on the site of a pagan temple.

This fairy-tale castle would make Dracula (who is said to have been imprisoned there) jealous.

The possible imprisonment of Vlad the Impaler here earned the medieval castle its nickname, "Dracula's Castle."

This eccentric folly house was designed by Romanian thinker Bogdan-Petriceicu Hasdeu, with a helping hand from his deceased daughter's spirit.

It was an experiment to prove that glacial boulders and rocks can be used in constructions and dwelling.