Keskmine GPS koordinaadid postiindeks 20577: 38.901, -77.035
videod linnad:
>> Washington 20577, District of Columbia, District of Columbia, GPS koordinaadid: 38.9008,-77.0345
videod linnad:
>> Washington 20577, District of Columbia, District of Columbia, GPS koordinaadid: 38.9008,-77.0345