Abuja is the capital city of Nigeria, in the middle of the country. The skyline of the city, which was built largely in the 1980s, is dominated by Aso Rock, an enormous monolith. It rises up behind the Presidential Complex, which houses the residence and offices of the Nigerian president in the Three Arms Zone on the eastern edge of the city. Nearby are the National Assembly and the Supreme Court of Nigeria.
The city has two large parks, including the National Arboretum, an area of natural forest. The other is Millennium Park, a large expanse of natural vegetation and manicured gardens divided by the Wupa River. The dome and minarets of the Abuja National Mosque and the tall modern spire of the National Christian Center are in the Central Business District. Just outside the city is Zuma Rock, a towering monolith that is also pictured on Nigeria’s national currency.