The Battle of Troy may be one of the most famous in mythology, with the classic Trojan Horse plot leading to the takeover of Troy by the Greeks. Okay, so the Trojans were fooled on that one. But they weren't so foolish when creating the Trojan Shield. Uniquely designed with two semi-circle cutouts, this defensive piece was effective enough to carry an empire until the fall of Troy. All good things come to an end, I guess.