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
Ionia Downtown Commercial Historic District the city, serving travelers arriving by railroad. Much of the building stock in the district was built starting around this time, as Ionia grew in the late ninetheenth century. The Ionia Downtown Commercial Historic District covers nearly all of Ionia's central business district, and includes buildings which were constructed primarily in the late nineteenth and early twentieth centuries. Eighty-five structures are included in the district, of which seventy contribute to the historic nature of the district. These buildings are primarily commercial, although the district does include some residential, religious, and governmental buildings. The commercial blocks stand side-by-side, directly on the