Megiddo is one of the most well-known archaeological sites in Israel, mostly due to its association with Armageddon. The city is mentioned in many ancient manuscripts from the Egyptians, the Assyrians, and even the Hittites. The tel itself is situated on a hill overlooking the Megiddo valley, and it was occupied at various points over a long time period, from the Neolithic period to the captivity of the Northern tribes of Israel during the 8th century BCE.
Megiddo has a terrific 6-chambered gate and a deep water system. It also has some beautiful views out over the valley. You can easily see why this one spot has been contested by nations for millenia.
Link: Jewish Virtual Library.
