The first serious excavations at Ur were made after World War I by H.R. Hall
of the British Museum. The Ziggurat of Ur has also been referred to as the Tower of Babel.
Mr Leonard Woolley's research would've given much more details of the interior. I just attempted to give a brief overview of it's contents. I should've included a couple of paragraphs on interior descriptions to give a better argument for it's preservation.