Busch Gardens Tampa Bay’s Howl-O-Scream ranks among the top Halloween theme park events of 2025, featuring twisted haunted houses and scare zones that push the boundaries of fear. Ali Majdfar/Getty ImagesAs October rolls in, theme parks across the country are transforming into haunted playgrounds filled with fog, frights and fall festivities. USA TODAY’s 10Best Readers’ Choice Awards has revealed the top 10 Halloween events at theme parks nationwide. Halloween Haunt at Dorney Park — Allentown, Pennsylvania: Dorney Park’s nighttime event is packed with haunted mazes, scare zones and live shows. Whether you’re looking for glowing pumpkins, haunted carnivals, or alien-infested farmhouses, these theme parks offer Halloween experiences coast to coast.