Contributor FlyONE used a drone to create this amazing shot of an ancient incription by the Persian King Xerxes I. Known as the XV Inscription, it's etched into a mountain near Lake Van in eastern Turkey. It dates to the fifth century BC. In the inscription, the king of the Achaemenid (Persian) Empire declared himself the King of Kings, as indeed he was: at the time, the Empire was the largest the world had ever known. The words were written on a slate which been cleared by Xerxes' father, Darius I.