173 was to draw something from memory. I drew the dirt road by the meadow in Vermont where we would vacation. When we were kids, we'd ride the trailer the tractor pulled with the garbage cans and help dump them in the various sites in the woods. One site was for biodegradables and another was for glass and cans. Those sites have been cleaned up now that the property is part of the land trust. But for kids, it was a fun job.
174 is draw a bridge. This is Ponte Vecchio in Florence, Italy. I drew it from the window of the Uffizi Museum, then later painted it. I should redo the painting sometime.