All six houses and nine scare zones have been announced for 20 years of Howl-O-Scream (Photo: Busch Gardens Tampa)

Oh the horror! Busch Gardens’ Howl-O-Scream is unearthing long-buried icons of the past and new nightmares you’ll be dying to wake up from. The park is celebrating “20 Years of Fear” so you can expect lots of sinister surprises. Today let’s take a look at the many haunted houses:

The Residence
New to this year’s lineup, The Residence takes guests inside a suburban home where the seemingly perfect Clark family lives. But as you find out things aren’t always as they seem. This house of horrors unveils the Clark’s performing sinister sacrifices and you’ll need to find your way out alive.

Death Water Bayou: Wrath of the Queen
Returning favorite, Death Water Bayou: Wrath of the Queen takes those who dare deep inside the swamps where the Queen of the Shadows has been lifted from the dead by Voodoo’s dark magic. She’s seeking revenge on the living and has an army of devilish devotees coming after you.

Insomnia: Patients’ Revenge
If you couldn’t sleep before Howl-O-Scream you certainly won’t be able to after walking through Insomnia: Patients’ Revenge. The sleep institute has seen its fair share of cruel treatments and now the tortured and imprisoned patients are rising against the demented doctors to seek revenge. Every place you turn in this house is a living nightmare.

Motel Hell: Infestation
You’ll never want to stay in a motel again after a walk through Motel Hell: Infestation. The Motel Shellburn has been taken over by hordes of insects and the exterminator is determined to extinguish all signs of life, you included.

The Black Spot: Bloodshed
Set sail on Captain Saw-Tooth Silas’ pirate ship but don’t expect to experience any pirate adventures. Instead you’ll get lost in his labyrinth of torture as he tries to keep you as his treasure.

Simon’s Slaughterhouse
With a name like Simon’s Slaughterhouse you know this haunted house is going to be full of terrors. Your stomach is sure to turn when you see the types of horror that take place inside this house. Careful not to get caged in or you’ll wind up on Simon’s butcher block.

Howl-O-Scream begins haunting September 20 and runs through November 2.