[5] Although Qwest moved its headquarters in 2000, the two brightly lit blue signs on 555 17th Street remained in place for four more years.

[1] 555 17th Street is composed entirely of Class A office space, containing features such as a tenants' restaurant, private club, and conference center.

555 17th Street has been installed with several environmentally "green" features, including a 600-ton flat plate heat exchanger and electronic ballast lighting technology.

[6] The building's management company, Mile High Properties, estimates that the upgraded features have generated savings of US$$1,835,000 in five years.

[6] Due to its green features, 555 17th Street has been designated a "Labeled Building" by Energy Star and the United States Environmental Protection Agency.