From the turn of the 20th Century through its first few decades,James and Merritt Reid designed an impressive number of San Francisco’s buildings, from theaters to hotels, office towers to townhouses, bandshells to barns. With scant professional training but plenty of hustle, these Canadian brothers left their mark across the width of our city. Come discover some of their work and hear their story (catch the “Reid Bros in the Richmond” ride on Feb. 19 for even more). Two-hour ride, longer if we’re having fun; have a big lunch beforehand, we’ll stop somewhere for a snack.; rain cancels rides.