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 180 high-capacity buses for the implementation of the first phase Mile 12 to CMS BRT Lite system. An extensive urban rail system, Lagos Rail Mass Transit, running through the Lagos metropolis is currently under construction. Several intercity and commuter trains serve Lagos through the Lagos Terminus railway station. Lagos currently the world's largest city proper in term of population, which does not have grade-separated rapid transit system. Lagos State Ferry Services Corporation runs a few regular routes, for example between Lagos Island and the mainland, served by modern ferries and wharves. Private boats run irregular passenger services on the lagoon