The 13th Floor — one of the many haunted houses in the Phoenix area — offers two different themes inside the attraction. It is home to a variety of scares such as zombies, pirates, snakes, giant dogs, and insane doctors. Although many people enjoy the seasonal frights of haunted houses, they don't know how much work goes into one. Take a look at how the 13th Floor prepares for a night — actors getting made up, changing into their wardrobe, warming up voices and acting skills, testing the set with the lights both on and off, and eventually opening the doors for their customers. All photos by Alexandra Gaspar.