At Pizza Casbah on 126 West Laurel Street, you can take the 30" pizza challenge: two people, five toppings, one hour and $50 to give it a go. If you manage to finish that monster pie, the folks at Pizza Casbah say they'll give your money back, a gift card plus "an extra ten bucks for some Tums." You'll also be immortalized on their wall of fame.
You'll need to make a reservation beforehand, so give them a call at 970.221.9144.
And if you're in it to win it, you may want to check out these tips from competitive eater Randy Santel.