Maslak "Spine Tower" which reaches a structural height of 202 meters; while the tallest skyscraper currently under construction in Maslak (as well as Istanbul and the rest of Turkey) is the Diamond of Istanbul, which comprises three centrally-connected towers, the tallest of which will have 53 floors above ground and will reach a structural height of 270 meters (thus surpassing the current tallest completed skyscraper in Istanbul, the 54-floor, 261 meters tall Istanbul Sapphire in the nearby Levent business district.) The Diamond of Istanbul will also be the first steel skyscraper in Turkey, where (as opposed to the situation in the
East Center City Commercial Historic District East Center City Commercial Historic District East Center City Commercial Historic District is a national historic district located in the Washington Square neighborhood of Philadelphia, Pennsylvania. It encompasses 287 contributing buildings that includes a mix of large and small commercial buildings, banks, hotels, newspapers, clubs, and restaurants. Notable buildings include the Curtis Publishing Co. (1907), Lits Department Store (1891), Strawbridge and Clothier (1868), Gimbels (1894), Benjamin Franklin Hotel (1922), New York Mutual Life Insurance Company Building (1872, 1890), Aldelphia Hotel (1912), Blum Store (1927), Keystone National Bank (1884), Beck Engraving and "The Press" (1896), Integrity Trust (1923), Quaker City Bank