What is "uranopolis"

Uranopolis was a city in ancient Macedonia, allegedly founded by Alexarchus, brother of king Cassander of Macedonia. The exact location of Uranopolis is unknown, though perhaps the city was located on the peninsula of Athos. Uranopolis was the site of a mint in the Kingdom of Thrace. Coins of Uranopolis are known for displaying Athena or the Muse Aphrodite Urania, the muse of astronomy, sitting on a globe. The globe represents the Celestial Sphere. It is a common misunderstanding that the globe represents the earth and that this is the first known depiction of the earth in its actual shape.