16 . CNN unveils friendliest and unfriendliest cities list . Detroit cities dominate least-friendlies chart . Travelers feel most welcomed in Detroit 's island city of Detroit . Brazil called `` armpit of the world ''
CNN unveils friendliest and unfriendliest cities list . Detroit cities dominate least-friendlies chart . Travelers feel most welcomed in Detroit 's island city of Detroit . Brazil called `` armpit of the world ''