Abuja Major religious sites include the Nigerian National Mosque and the Nigerian National Christian Centre. The city is served by the Nnamdi Azikiwe International Airport. Abuja is known for being one of the few purpose-built capital cities in Africa, as well as being one of the wealthiest. Abuja is Nigeria's administrative and political centre. It is also a key capital on the African continent due to Nigeria's geo-political influence in regional affairs. Abuja is also a conference centre and hosts various meetings annually, such as the 2003 Commonwealth Heads of Government meeting and the 2014 World Economic Forum (Africa) meetings. "Abuja"
Abuja Jonathan expressway, some portions of which are still under construction. A direct highway link to Minna in Niger State is still under construction. The A2 expressway links Abuja with Kaduna in the north and Lokoja in the south. There are also other highway links with the outlying region, such as that linking the suburb of Dutse Alhaji with the Lower Usuma and Gurara Dams, which supply water to the city. Abuja is on the route of the planned Lagos–Kano Standard Gauge Railway, which has been completed between Abuja and Kaduna. Trains for Kaduna depart from the Idu Railway Station in