Having the bragging rights for the world’s tallest building is no mean feat, currently this accolade is held by the Burj Khalifa in Dubai. The Burj Khalifa was officially opened in 2010, measuring a staggering 828m tall one would think that its record was safe for quite some time. However it is has recently been reported that Adrian Smith + Gordon Gill Architecture is designing a building that will be even taller. Supposedly called the Kingdom Tower, it will be located in Saudi Arabia and stand over 1,000 meters. The Kingdom Tower will have a total construction area of 530,000 square metres, and cost an estimated $1.2 billion USD. Featuring a luxury hotel, apartments and of course office space this will no doubt be one luxurious development.