The title of world’s tallest building looks set to be claimed by Saudi Arabia’s Jeddah Tower now that funding for the last phase of its $1.2billion (£800million) development has been secured. Once the spire is complete in 2020, The Kingdom Tower as it is known is planned to reach 3,280 ft.

The mixed-use building will include offices, a 200-room Four Seasons Hotel, 121 serviced apartments and 360 residential apartments.