Greek Témbi
Narrow valley between Mount Thessaly , Greece.
The Pinios River flows through the 6-mi (10-km) valley before emptying into the Aegean Sea. The ancient Greeks dedicated Tempe to the cult of {{link=Apollo">Apollo . Legends attribute its formation to a blow from Poseidon 's trident; however, geologists believe it was carved by stream action. Because it provides access from the coast of Greece to the Thessalian plain, it has been a traditional invasion route. Ruins of castles and fortifications, from the Roman period to the Middle Ages, mark its strong points.