Why Cant that Abandon Downtown Hotel be Demolished?

I'm wondering if anyone has any information/history on the abandon holiday inn/days inn downtown covered in graffiti. Why cant it just be demolished or restructured into something else? I'm sure there are specific reasons and exorbitant costs involved. It sure is an eyesore to look at and takes away from the beautiful Houston skyline. I saw a similar post about it a few years back and am wondering if there are any updates?