Compose Your Frame Assignment

f/3.5, 1/1250 s, ISO-100, 18mm

In this photo, the rule of thirds applies because our eyes are instantly drawn to the chairs, one of which is hovering near the bottom-right corner of our invisible tic-tac-toe grid.  The vertical lines in the top of the structure also end on the top part of the tic-tac-toe grid.  We have diagonal movement from those chairs and the narrow beams running across the ceiling of the structure.  This also creates depth--our eyes want to travel along the path where the beams and chairs point.  From this perspective, it might even be infinite.