The intersection of 15° north latitude and 15° east longitude is north of Lake Chad in the central African nation of Chad.
South west France, about 90 miles east of Bourdeaux.
Indian Ocean, off the Arabian Coast.
This is a location in the Mediterranean Sea, near the Balearic Islands.
In an olive grove, about 15 miles due east of Athens, Greece.
40 degrees north latitude and 105 degrees east longitude intersect in Asia.
That point is in western China, roughly 290 miles southeast of Urumqi.
That point is in south-central Libya, about 130 miles east of Murzuq.
That point is located in southeastern Somalia, about 25 miles west of the center of Mogadishu.
Antarctica
The coordinates 30 degrees north and 45 degrees east intersect in the Middle East region, specifically in western Asia. This point is located in countries such as Iraq, Iran, and the Persian Gulf. More specifically, it is in the general vicinity of Baghdad, the capital city of Iraq.
The coordinates 20 degrees north and 30 degrees east intersect in the African continent. Specifically, they are located in northern Africa, in countries such as Egypt or Sudan.
40 N 100 E is northern China, so the continent is Asia.