The answer would be the capital of Congo with is Brazzaville
Kinshasa, Democratic Republic of Congo, is about 45 miles north of these coordinates.
A point in central Sudan, 54 miles south of Khartoum
That point is in south-central Zambia, about 34 miles northwest of Lusaka.
which city is located at 36 degrees north and 15 degrees east
The city located at 15 degrees latitude and 129 degrees longitude is Manila, the capital city of the Philippines.
The city of Salzburg, Austria is about 15 miles south of these coordinates, and the city of Munich, Germany is about 60 miles to the west.
Namibia, Africa
That's near Limulunga in western Zambia. Not really any cities there.
The very edge of Australia.
India, in the city of Begun, is at 75 degrees east and 15 degrees north
Sana'a, Yemen
4° 19′ 30″ S, 15° 19′ 20″ E-4.325, 15.322222