Scaresville
An entire Tudor estate turned into a haunted village, with 250 actors in it.
Scaresville is not a maze — it is a route through a whole estate. Haunted house sets, ancient outbuildings, woodland and open farmland around Kentwell Hall, with a cast of around 250 playing everything from dolls to zombies to killer clowns.
It takes roughly an hour and the scale is what sells it: there is no queue-line filler, you are simply in it the whole way. Dress for a Suffolk field in late October.