Lisbon is the 11th most populous urban area in the European Union, with a population of 2.7 million. City and its metropolitan area has four skyscrapers above 100 m (328 ft) and total about 20 skyscrapers above 70 m (230 ft). Nearly ten buildings were built in the last few years, after 2000. Most buildings are offices, the rest are hotels and residential buildings. Several high-rise buildings are located in the Parque das Nações.[1] The tallest building in Lisbon is the Monsanto Tower.