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
Osage Commercial Historic District Osage Commercial Historic District The Osage Commercial Historic District is a nationally recognized historic district located in Osage, Iowa, United States. It was listed on the National Register of Historic Places in 2002. At the time of its nomination it contained 50 resources, which included 46 contributing buildings, one contributing structure, and three non-contributing buildings. The historic district covers most of the city's central business district. Four settlers claimed four tracts of land that would become the city of Osage: Hiram Hart, that is the southwest side; Dr. A.H. Moore, for the southeast side; O.E. Tripp, the northwest side; and