Jeddah Tower (Arabic: ??? ????), previously called Kingdom Tower (??? ???????), is a stalled construction project of a skyscraper on the north of Jeddah, Saudi Arabia. It is supposed to be the world's first 1 km (3,281 feet ) high building, and the centrepiece and first phase of a development and tourist attraction called Jeddah Economic City.There was steady progress but in January 2018 building owner JEC halted structural concrete work together with the tower about one-third completed because of labour issues with a builder after the 2017--19 Saudi Arabian purge.
City of Capitals Tower
The City of Capitals (Russian: ????? ??????, tr.Gorod Stolits) is a mixed-use complex composed of two skyscrapers and an office building located on storyline 9 at the Moscow International Business Center in Moscow, Russia with a complete area of 288,680 square metres (3,107,300 sq ft). The two skyscrapers are named after both historical capitals of Russia: Moscow and Saint Petersburg. Construction of the complex began in 2005, with the office building completed in 2008 and both skyscrapers finished in 2009. Moscow Tower is the taller of the two skyscrapers, with a height of 301.6 metres (990 ft) and 73 stories, exceeding the Naberezhnaya Tower as the tallest building in Russia and Europe in 2008, until it was surpassed by The Shard at London, United Kingdom at 2012. St. Petersburg Tower has a height of 256.9 metres (843 ft) and 65 tales while the office building serves as a stylobate having a height of 76 metres (249 ft) with 18 floors. Source: Wikipedia