Lagos and Victoria Island. Three major bridges join the island to the mainland. They are the Carter Bridge, which starts from Iddo; the Eko Bridge (formerly called the Second Mainland Bridge); and the Third Mainland Bridge, which passes through densely populated mainland suburbs to the Lagos Lagoon. Lagos Island contains a central business district. This district is characterised by high-rise buildings. The island also contains many of the city's largest wholesale marketplaces (such as the popular Idumota and Balogun Markets). It also has the National Museum of Nigeria, the Central Mosque, the Glover Memorial Hall, Christ's Church Cathedral (CMS) and the
Lagos State not part of Metropolitan Lagos. In 2003, many of the existing 20 LGAs were split for administrative purposes into Local Council Development Areas. These lower-tier administrative units now number 56: Agbado/Oke-Odo, Agboyi/Ketu, Agege, Ajeromi, Alimosho, Apapa, Apapa-Iganmu, Ayobo/Ipaja, Badagry West, Badagry, Bariga, Coker Aguda, Egbe Idimu, Ejigbo, Epe, Eredo, Eti Osa East, Eti Osa West, Iba, Isolo, Imota, Ikoyi, Ibeju, Ifako-Ijaiye, Ifelodun, Igando/Ikotun, Igbogbo/Bayeku, Ijede, Ikeja, Ikorodu North, Ikorodu West, Ikosi Ejinrin, Ikorodu, Ikorodu West, Iru/Victoria Island, Itire Ikate, Kosofe, Lagos Island West, Lagos Island East, Lagos Mainland, Lekki, Mosan/Okunola, Mushin, Odi Olowo/Ojuwoye, Ojo, Ojodu, Ojokoro, Olorunda, Onigbongbo, Oriade, Orile