Digging Up Herod

When we consider the archaeological sites across Israel today, none are more impressive than the remains of ancient structures built by King Herod the Great. With the aid of his Roman allies, Herod conquered the land of Israel, including Jerusalem, and established himself as king in the year 37 B.C.E. Herod has been described as a manic depressive, paranoid schizophrenic, with aggressive tendencies. In his manic state he built some of the grandest structures on earth in his day. What can we learn by digging them up?