Shorpy.com

 I really enjoyed finding this site - lots of pictures, many very high quality.  And a lot of silly, slightly bent titles and comments :)  BTW, the above picture of the Milwaukee Post Office is from 1901.

source:                        https://www.shorpy.com/node/20639

I think of that building as the old Federal building.  I was only in there twice.  First in 1972 (or was it 1973 ?) to take the exam for my General class amateur radio license.  Second in 1974 to register for the draft.

Anyway, Shorpy.com highly recommended !

Best Regards,
Chuck, WB9KZY
http://wb9kzy.com/ham.htm