Wondering where to go for Halloween in Denver? About Travel Aimee Heckel reports…

People fly out for these parties. They also sell out every year.

If you’re in Colorado in October and looking for the best spooky, costumed action, here are your two no-fail, best bets. Just make sure you wear a costume. At one, costumes are required, and at the other, there’s a massive $2,000 costume contest prize, judged by horror-flick celebrities.