Cooler air is here. You can feel that the Halloween season is creeping in.

Lots of amusement parks celebrate with a range of thrills.

USA Today is letting its readers pick the best theme park Halloween events.

Three of them are in the Philadelphia region, including "Hersheypark Halloween" and "Halloween Haunt at Dorney Park."

Topping the leaderboard right now is "Hallo-Fun at Knoebels," in Central Pennsylvania.

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