These are from the complex at the Babylon Istar (Astarte, Esther in some other languages) gate. They are wonderful, is all I can say. From other sources I gather it is from 575 BC. By King Nebuchadnezzar II. I also understand that to see the gate in a restored version you should travel to Berlin, Germany. I give a link to the English Wikipedia article (I think the German may be somewhat better), where you can also see a reference to these pictures.

On the pictures you see bulls, dragons and lions.