University Building, Denver Colorado.

What's depicted here is the smokestack of the University Building in Denver Colorado.

The University Building was built in 1910 as the A. C. Foster Building and was renamed in 1921 when it was donated to Denver University.  It contains many art deco embellishments.

A more recent embellishment to the building, which is now an apartment building, has been the painting of its smokestack as a No. 2 pencil, thereby playing on its name.

Icehouse, Denver Colorado

This old building in Lower Downtown Denver bears a name that is somewhat confusing.  With a name suggesting cold storage, the building was in fact built as the Littleton Creamery and Beatrice Foods Cold Storage Warehouse.  Now, however, its an apartment and condominium building and it also houses a bar named the Icehouse Tavern.