According to Google Earth, it is a boundary line between Oman and Saudi Arabia and right where the boundaries make a sharp turn. Maybe you should try and check it out.
Coordinates:
20° N, 55° E
Best if you just copy this coordinate on Google earth Google maps on Google might not work as well, I didn't try it
Honolulu is at 157° 55' 20" west longitude by 21° 19' 5" north latitude.
Montevideo
Brazil is a huge country. These are the coordinates for its capital, Brasilia: Latitude: 15°S Longitude: 47°W
Latitude: N 24° 4' 39.828", Longitude: E 32° 55' 3.684"
The coordinates of the main city on the Island are : 55° 6′ 20″ N, 14° 42′ 10″ E
Poland
No country. It is the Indian Ocean near Réunion Island.
Edinburgh
Honolulu is at 157° 55' 20" west longitude by 21° 19' 5" north latitude.
Latitude: N 55° 2' 21.2294", Longitude: E 82° 55' 40.1452"
Para maribo's latitude and longitude is 5 50 north latitude and 55 10 west longitude.
poland
Montevideo
Latitude: 55°47′N Longitude: 49°10′E
Latitude: 33°55′S Longitude: 18°25′E
latitude 32 degree south and longitude 55 degrees east
Brazil is a huge country. These are the coordinates for its capital, Brasilia: Latitude: 15°S Longitude: 47°W