Wikipedia seems to have a good sampling of history and other Babel Tower lore.
This in turn links to an interesting, interactive encyclopedia of the Tower
Perhaps we could have taken better note that there is danger in the building of high towers? That they would be the first objects of a dominant culture to come under attack?
I have no reason to question that there was, historically, a tower. The Greek Historian Herodotus is said to have visited it as late as 440 BC. There are incredibly various accounts of its height, anywhere from 200 ft, to extending to the far reaches of our solar system (perhaps the latter is the more metaphysical measurement).
But I am surprised by the rather short list of literary works given in the second source related to the Tower. It is nice to find a John Cheever story I have not yet read-- "Clancy in the Tower of Babel." Of course there is Borges' "The Library of Babel." Some references in Kafka, a book by Derrida, which I imagine is, all by itself, proof of the confounding of language.
There is a nice page of paintings of the tower also in the second source above. Apparently there was a school of Babel Tower painters.
As to actual puzzle progress, I have less than 100 pieces in. The teal and brown colored Euphrates is laden with a large raft, with sailing ships of indistinct rigging, with small suds, brackish eddies, and a general murkiness. It is the Styx I must cross to begin constructing the tower itself.