The capital of Nigeria is Abuja, which was founded 1980's. Abuja has been the capital since 12/12/1991.
Although Abuja is not the largest city in Nigeria, it functions as: Houses the judicial branch of government.
Abuja is located at 9.0765° N, 7.3986° E, at an elevation of 2,756′ ft.
Source: https://flic.kr/p/657rV6