The one next to the Cascade sign is the pending Zions Bank Tower Headquarters. The other one is the proposed hotel tower at Arrow Press Sq., which has been awaiting construction of the new Convention Hotel. The Convention Hotel tower construction is slated to begin soon. It's really not visible is this illustration.
Here's a couple renderings of that upcoming Convention Center Hotel. The hotel tower at Arrow Press Sq. will be across the street from this CCH development.
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