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
State Center Commercial Historic District station, city hall, post office, and former high school (now a middle school). Watson's Grocery was individually listed on the National Register of Historic Places in 1998. The buildings range in size from small-scale and modest size structures, which reflect the impact of destructive fires in 1895 and 1917 and State Center's modest commercial economy. The period of significance is from 1869 to 1952, and the buildings are constructed during that time frame. Late 19th and early 20th-century revival styles and the Prairie School style are dominant. State Center Commercial Historic District The State Center Commercial Historic District is a