(bb) cd15cold_bb_ – Downtown Denver starts the week at subzero temperatures, Monday, Dec. 15. (Photo by Brian Brainerd / The Denver Post)

(Photo By Brian Brainerd/The Denver Post via Getty Images)
(bb) cd15cold_bb_ – Downtown Denver starts the week at subzero temperatures, Monday, Dec. 15. (Photo by Brian Brainerd / The Denver Post)