sentences:  This prime plot of land is located amongst many of Istanbul's current crop of skyscrapers - across the road from the Sapphire of Istanbul (Turkey's current tallest building),and will reach 261m in height.The project was proposed by developers Sama Dubai (formerly Dubai International Properties) who saw Istanbul as potential for foreign investment.The project will cost US$500,000,000 and is part of a US$5billion investment into the city.