40 Surreal Photos That Will Make You Feel Uneasy For Unknown Threshold spaces have a certain eerie atmosphere that examines the uncharted and challenges our cognition. These zones imply the boundary between the real world and the supernatural, establishing a sense of doubt. Whether it's an abandoned building or a dimly lit forest, transitional areas welcome investigation and transmit shivers up our backs. Explore the haunting allure of these enigmatic transitional zones and embrace their ominous charm.