Thermopylae monument, 300 Spartans, leonida. The Monument of Leonidas -at The Battle of Thermopylae - where he and his 300 men defeated the Persians - keeping freedom alive, uniting Greece, and . 666 Monument to Spartas Leonidas & the 300 at Thermopylae, Greece. 667 Monument to Spartas Leonidas & the 300 at Thermopylae, Greece. Monument of Leonidas and the 300 Spartans (in Greece) Monumento a Leónidas y los 300 espartanos (en Grecia) More Greece trip information at .