Under the right circumstances any forest could feel spooky, but Hoia-Baciu in Transylvania definitely dials things up a notch. Filled with crooked trees and carpeted by an eerie mist, the area has been dubbed ‘the Bermuda Triangle of Romania’ since there have been many tales of people going missing and other strange occurrences here. Horror stories aside, there’s an even bigger puzzle even scientists can’t explain...

In the heart of the woodland there’s a near-perfect circular patch, known as ‘the Clearing’, where nothing grows – and no one knows why. Outside of the circle, trees grow in strange, twisted forms. Various scientists have taken soil samples, studied the plant life and tested for radiation here, but their results have not yielded an answer as to why this desolate patch exists. One thing’s not up for debate, though: this forest will send a chill down the spine of anyone who ventures in.

These mysterious natural wonders still can't be fully explained