Planning an end-of-summer vacation? Better stay away from these US cities, apparently the kinds of places where locals will give you bad directions, then steal your wallet. Condé Nast Traveler asked travelers to rate the "friendliness" of US cities for its 2015 Readers' Choice Awards and received 128,000 or so responses. For the record, Charleston, South Carolina, ranked as the friendliest, but here are the 10 unfriendliest cities in the US: