Bell System buildings are the weirdest. There's art deco stuff like the St Paul MN central office, or the Mountain States Telephone and Telegraph building in downtown Denver, which is worth venturing into the lobby to see murals like "The Wings of Thought" and "The Crucible of Science" to industrial hulks like the Minneapolis main central office. There's a data center at 52nd and Zuni in Denver that's really 1960s.
Then there's buildings so bland you can walk or drive by and you won't remember them, like the building at the corner of 15th and Curtis in Denver. Architectural blind spot.
Then there's buildings so bland you can walk or drive by and you won't remember them, like the building at the corner of 15th and Curtis in Denver. Architectural blind spot.