17. Hell: House

: Sam and Dean Winchester travel to Richardson, Texas, to investigate a reputedly haunted house where a girl's body was found hanging in the cellar, only to disappear before police arrived.

While the phrase "Hell House" can refer to multiple cultural milestones—from 1970s horror literature to modern found-footage cinema—it most frequently represents the landmark 1.17 episode of the television series , titled " Hell House ." 1.17 "Hell House": The Birth of the Ghostfacers 17. Hell House

: Published in 1971 by Richard Matheson , Hell House is regarded as one of the most terrifying haunted house novels ever written. It follows a team of four investigators—two mediums and two scientists—as they spend a week in the notorious Belasco House to prove the existence of life after death. : Sam and Dean Winchester travel to Richardson,

: The "ghost," a depression-era farmer named Mordechai Murdoch, turns out to be a Tulpa —a thoughtform brought to life by the collective belief of people reading about him on a local urban legend website. : The "ghost," a depression-era farmer named Mordechai

Aired in 2006, " Hell House " is widely considered a foundational episode of Supernatural because it introduced the (Harry Spangler and Ed Zeddmore), a pair of amateur paranormal investigators who would become recurring fan favorites.