מחשבות מתחילות כאן
https://en.wikipedia.org/wiki/Trompe-l%27œil#/media/File:John_Pugh's_mural_on_a_façade_of_Taylor_Hall_at_California_State_University_at_Chico_can_easily_cause_double-takes_LCCN2013631111.tif
https://en.wikipedia.org/wiki/Trompe-l%27œil#/media/File:John_Pugh's_mural_on_a_façade_of_Taylor_Hall_at_California_State_University_at_Chico_can_easily_cause_double-takes_LCCN2013631111.tif