A little revisionist history. Here's the official word from History Colorado spokeswoman Rebecca Laurie: "The floor is made with a variety of different types of recycled glass, including beer bottles, as we understand it. And while there's no way to know the percentage of what could be beer vs. other recycled glass (or of that recycled beer glass, what percentage could be Coors), given the popularity of Coors in the general market, there's likely Coors glass -- as well as other major brands -- in the floor."
And the rest is history.
Read Michael Paglia's review of the History Colorado Center (which he loved) and its contents (which he didn't) in his column "The new History Colorado Center is an architectural triumph" and see more suggestions in the Show and Tell post "Ten shows the History Colorado Center should have opened with."