Is There Any Proof of Nebuchadnezzar's Mental Illness?

Beside Babylon's wall and gate, Daniel was also familiar with Nebuchadnezzar's palace. According to Nebuchadnezzar, he built his palace over his father's. He strengthened the foundation and rebuilt the walls with burnt brick. The roof was cedar and he covered the cedar doors with copper. Bronze, silver, gold and precious stones decked out the rest of the structure. It must have been quite a sight.

 

Nebuchadnezzar was proud of his buildings. He said in Daniel 4:30, "Is not this great Babylon, ...