404. That’s an error.

The requested URL /destination?q=Niagara+Falls&rlz=1C1GCEA_enCA772CA772&site=search&output=search&dest_mid=/m/018lc_&sa=X&ved=0ahUKEwikjfuev87bAhVn0YMKHVigAUoQ6tEBCHYoBDAB was not found on this server. That’s all we know.