Deadly forests. Haunted houses. Mountains where visitors never return alive. Are there such things as "evil places"? Places where bad things seem to repeatedly -- and inexplicably -- happen? And if so, is it possible that these locations are imbued with dark energy that is currently beyond our understanding?

Millions of people around the world claim to have had an encounter with a creature unlike any recognized by mainstream science - such as the Mothman, Chupacabra, and Mongolian Death Worm. Could these incredible creatures be real? And if so, what could possibly explain these freaks of nature?