Flesh-eating zombies, cannibalistic clowns, nightmarish ghouls, and haunting ghosts prowl The Frightmare Compound, ready to snatch those foolish enough to venture through its fear-infested grounds. Known as one of Colorado's oldest and largest haunted attractions, the compound houses two terrifying attractions on more than 100,000 square feet of swampland. Horrors unseen wait for new victims inside the first compound, where a haunted barn filled with terrors is the least of visitors' worries. The second attraction, the House of Darkness, was the site of a terrible massacre and lay abandoned for some time until the Frightmare staff brought it to their site. Soon after, the ghosts of those slain began roaming its halls, and clowns with a taste for human flesh found their way inside its corridors.