What is it about abandoned places that instigates people to explore the most unhabited and hard-to-reach locations? Sometimes, the thrill of looking is more than enough to make the adventure worth it, in other instances, brave urban explorers are rewarded with hidden gems inside houses overgrown with vegetation, hotels covered in graffiti, and old industrial buildings surrounded by charming nature.

Whatever the reason, there is always a treasure waiting to be found in these locations, it just requires time and patience to find them. Luckily, netizens have been sharing some of the most eerie and beautiful abandoned places in the world, revealing a surprising amount of secrets and relics in the sites.

Let's jump into these 21 abandoned places that were either incredibly hard to find or featured some kind of hidden gem inside.