One of the most famous cases of Poltergeist activity in the world took place in a normal council house in Brimsdown, Enfield, England between 1977 and 1979. The activity revolved around a young girl, Janet Hodgson, and has went on to be known around the world as The Enfield Haunting. Many people still believe the claims of the family members involved.....many believe it was a hoax from start to finish. Google the various accounts and stories then judge for yourself !!
Ed & Lorraine Warren were world renowned paranormal investigators. Some of their famous cases include the Amityville Horror, the Perron family's farm house haunting (The Conjuring), and the Annabelle doll. They founded the Occult Museum in Monroe, USA with their collection of haunted objects that they compiled over the years.