Jeddah Tower or
Jiddah Tower , previously known as
Kingdom Tower and
Mile-High Tower , is a
skyscraper under construction in
Jeddah,
Saudi Arabia, at a preliminary cost of
SR4.6 billion . It will be the centrepiece and first phase of a
SR75 billion proposed development known as
Jeddah Economic City that will be located along the
Red Sea on the north side of Jeddah. If completed as planned, the Jeddah Tower will reach unprecedented heights, becoming the
tallest building in the world, as well as the first structure to reach the one-kilometre-high mark (Initially planned to be high, the geology of the area proved unsuitable for a tower of that height). Jeddah Tower seeks to bring great changes in terms of development and tourism to the city of Jeddah, which is considered the most liberal city in Saudi Arabia.