Ah, this has nothing to do with the Tower of Babel. It’s the description of the refurbishing of a particular ziggurat in Babylon, the likeness of Nebuchadnezzar is more interesting than any unlikely connection to Babel.
It says the ziggurat was built on the foundation of an earlier ziggurat that is “associated by some to the Tower of Babel.” Okay, so they may be wrong. But they may also be right. This requires further unprejudiced investigation.