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
Arkansas City Commercial District one. Stylistically the two buildings are similar, with brick corbelling and a course of dentil molding, with a parapet above. The third building is the Ramus Brothers Market, which stands on Sprague Street, was built in 1910 out of poured concrete. The district was listed on the National Register of Historic Places in 1999. Arkansas City Commercial District The Arkansas City Commercial District encompasses the three oldest surviving commercial buildings in Arkansas City, Arkansas. They are located along Sprague (4th) Avenue, between Kate Adams (1st) Street and De Soto Avenue, and are a reminder of a once-thriving commercial district in