Thermopylae

Thermopylae ( /θərˈmɒpɨliː/; Ancient and Katharevousa Greek Θερμοπύλαι, Demotic Θερμοπύλες: "hot gateways") is a location in Greece where a narrow coastal passage existed in antiquity. It derives its name from its hot sulphur springs. "Hot gates" is also "the place of hot springs and cavernous entrances to Hades".