A hotel in Pigeon Forge, Tenn. topped the dirty list. Reviewers said the Grand Resort Hotel and Convention Center is the worst of the worst.
They complained of mold, dirty bedding, unclean bathrooms and bug infestation.
The Desert Inn Resort in Daytona Beach, Fla., the Hotel Carter in New York City and the Polynesian Beach and Golf Resort in Myrtle Beach, S.C. also made the list.