Ugliest skyscrapers - Nabemba Tower

The Nabemba Tower, also known as Elf Tower, is an office skyscraper in Brazzaville, Republic of the Congo, located directly on the Congo River in the south of the city. At 106 metres and 30 floors it is the tallest building in the Republic of the Congo. It is named after Mont Nabemba, the highest mountain in the country. The tower was designed by Jean Marie Legrand during the government's five-year plan and was built between 1983 and 1986. Various ministries and charities' offices are housed in the tower. Each year, the maintenance alone of the tower costs the equivalent of £3,000,000, a significant cost for what is still a very poor country.