The no-man's land of the underground has always fascinated and terrified mankind. Most of the time when people are consumed by their daily errands they do not give it much thought. Some places are created by the earth itself such as caves and sinkholes, but others were purposely made by people to enhance their daily existence. Tunnels, subways and sewer systems are some of these. However in these places where sunlight seldom invades it, many of the sightings of things that exist here inspire th [...]