Today? It's mostly artwork of any and all kinds. So when something on the wall catches your eye, take out your phone and snap a shot or two.
Taken at Queen's Hospital, April 7, 2015, in Honolulu (Traditional Ohe Kapala Print by Kapa Maker Moana KM Eisele):
These car models were photographed at Cabrillo Park Cafe, April 24, 2015, in Fremont, CA:
Phone-cammed floral prints at Honolulu International Airport Gate 4, April 28, 2015, in Honolulu, HI: