Halloween is big business: Americans are expected to spend $9 billion on the holiday this year, according to the National Retail Federation.
If you or your office is looking for a place to celebrate, DBJ rounded up six of the best spots to catch a scare in the Denver area, all of which cater to big groups with the appropriate notice.
From family-friendly affairs like Elitch Gardens' Fright Fest to the more gory Hollywood-quality scares coming from 13th Floor Entertainment Group, there's something…
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