The best haunted houses in Denver 2011

The 13th Door is one of the more popular haunted houses in the state, and with every reason to be. It has been voted one of the 13th scariest haunts in the country.

To hear the organizers tell it, Decimation is not like other haunted houses

Frightmare has been scaring the knickers off people for 27 years now. If you think that all haunted houses are the same and nothing will scare you, take our word for it—frightmare will make you sleep with your Care Bear night light tonight. They don't even want kids under seven coming into it since they will never sleep alone again.

Brutal Planet, Blood Bath and the Tower of Doom! GO!

City of the Dead Haunted House encompasses 14,700 square feet of pure terror with more than 30 different themed scare zones, walkways, hallways and streets. A literal city built inside a massive event tent, filled with zombies and creatures born of the undead, it is among the largest, most intense haunted houses in Denver. They also have a lounge area featuring a bar which can be even more scary depending on who you are.

The experts at Primitive Fear almost think they took the fear factor one step too far and we can't handle it. We'll see about that. The only thing too scary to handle is Joan Rivers without makeup and most of us can even tolerate that. No, but on the serious side, Primitive Fear is scary and the faint of heart should enter at their own risk.

If you build it, they will come. Muahahaha. The Haunted Field of Screams is back for its 10th year scaring people. Come to one of the largest outdoor haunted houses there is in Colorado. It is an adult attraction and is not intended for children under any circumstances, which is a good thing...we have seen how scared they get in Black Bart's Cave at Casa Bonita. Tickets range anywhere between $16-$28 and they have group prices as well.

Muahahaha. Curse of Slaughterhouse Gulch isn't for the weak stomach types. It is scary. The name pretty much sums it up the best. With 'curse' and 'slaughterhouse' both in its name, you know their sole purpose is for you to sleep with the lights on.

The Reinke Brothers have given Colorado scares for 36 years now. There are over 30 rooms of Hollywood-effects to scare you out of your knickers. The brothers love to be in the business of Halloween and they are dang good at it. Come by to scream at their haunted mansion and to buy something on your way out at their Halloween store.

It has been known for centuries that Heritage Square is haunted and souls have found their place in Spider Mansion. When people visit the mansion, the souls are not like Martha Stewart and do not enjoy the company. And that company rarely live to tell the tale. If you're ready to get freaked out this Halloween come to Spider Mansion.

So you think you know what scares you? You haven’t been to The Haunted House yet. Step into Denver’s newest and most unique haunted house and experience the terror. As you wind your way thorough each corridor you come face to face with the stuff nightmares are made of. The Haunted House – Terror never looked so evil.

Within the walls of the legendary Nightmare Factory a hidden passage was unearthed! This passage descended two levels into Gordon Cottingham's Hospital for the Mentally Insane — The Asylum. Much deeper and darker than previous years' levels, the 2010 Asylum is a damp and musty place infested with spiders, rats, snakes and the endless screams of the tortured souls.

Where is the 13th floor, and why is it absent in so many buildings? The 13th Floor, a sister attraction to Denver favorite The Asylum, aims to show you. Hint: It's not where they hide all the puppies and candy. They're bigger and scarier than last year. We didn't think it was possible, but get ready to be scared out of your knickers this year.

Ah, the ol' 13th Street Manor story. Have you ever heard it? This is how the story goes [cue flashlights and horror music]. Each family that lived in the house slowly became insane as the years passed. Not long ago rumors of murder, insanity and even cannibalism came from the old Manor House on 13th Street. What happened to the families you ask? They vanished as quickly as they arrived. Muahahaha.

McConnells Greenhouse is no longer a greenhouse. It got possessed and demons are looking for their next victims. If you're in the mood to get zombie-ized, come to this creepy haunted house. It is the biggest—and only—haunted house in Lafayette. It is so scary, they suggest only people who are 13 and older take the risk of walking through it.

The 25th Hour is an interactive haunted house full of twists and turns. It incorporates state-of-the-art electronic and pneumatic effects and live actors who engage you in the storyline

The movie "Children of the Corn" still seems to haunt many of us and yet, at Field of Corpses, it seems to be reality. People have reported seeing shadows walking around in the night throughout the corn field. So what do you do in this situation? You turn it into a haunted attraction! Come to the haunted Field of Corpses to see for yourself...and no, those aren't actors, wise guy.

Just thinking of a prison is scary enough...but a haunted prison takes that scare up a scream. You see, it's the only prison in the state of Colorado that carries out the death penalties with horrible, ruthless techniques. The warden went insane. The prisoners went insane and now you can walk down the cold, haunted halls and truly see what your nightmare looks like. After all, some of the residents are dying to meet you.