Nigeria, officially the Federal Republic of Nigeria, is located in West Africa, bordered by Benin to the west, Chad and Cameroon to the east, and Niger to the north, with the Atlantic Ocean to the south. The capital city is Abuja, with other major cities including Lagos, Kano, Port Harcourt, and Ibadan. Nigeria has the largest economy in Africa, with key sectors in oil and gas, agriculture (cocoa, yams), and services. Major landmarks include the Aso Rock, Olumo Rock, and the Zuma Rock. Niger...