Epimachus of Athens (Ancient Greek: Ἐπίμαχος ὁ Ἀθήναιος, Epímachos ho Athénaios, c.300 BC) was a renowned Athenian engineer and architect[1] who is known to have constructed the Helepolis[2] (literally, Taker of Cities), a huge siege machine first conceptualised by Demetrius I of Macedon and built to be employed in the unsuccessful siege of Rhodes.[3]