Shalom. Where is the tower of babel standing today?

Shalom, Thank you for your question. The traditional reading of the story of the Tower of Babel (Genesis 11) is that they were unsuccessful in their attempts to build the tower. In verse 8 (ibid) we read “Hashem dispersed them from there over the face of all the earth and they stopped building the city.” Based on this, your question does not really have an answer. One cannot ask “where” of something that was never built. I hope this is of some help. Blessings.