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 Island part of Lagos. Most Nigerian banks' head offices are located on Lagos Island. First Bank of Nigeria is one of the Nigerian banks with its head office in Marina, Lagos Island. Another bank that has its head office situated in Lagos Island is United Bank for Africa (UBA). Other medium and large-scale businesses such as real estate consultancy firms, electrical appliances manufacturers and retail stores are based in Marina, Lagos Island. Located on Nnamdi Azikiwe Street, Idumota, formerly Victoria St, Tom Jones Memorial hall is noteworthy as the venue of the call for positive action by zikists in November 1948.