Behistun (Bisitun)
Monument of Darius, King of Persia
Read this article on Behistun munument, also read this one.
At the mountain of Behistun, Darius carved a huge billboard in the stone cliff to record the struggles he faced in gaining the throne. Darius' monument, displayed in a picture, and text printed in three languages, was critical to scholars who used the texts as a way to decipher the Persian and Babylonian languages. Two articles are provided here which describe the monument, the efforts required to examine it, and the history of its importance...
More on this