Prosečne GPS koordinate za poštanski broj 257-21: 49.833, 14.683
Spisak gradova:
>> Mrač 257-21, Benešov, GPS koordinate: 49.8333,14.6833
>> Poříčí nad Sázavou 257-21, Benešov, GPS koordinate: 49.8333,14.6833
Spisak gradova:
>> Mrač 257-21, Benešov, GPS koordinate: 49.8333,14.6833
>> Poříčí nad Sázavou 257-21, Benešov, GPS koordinate: 49.8333,14.6833