California Institute of Technology, modern architecture, campus scenery, palm trees lining the walkway, sunny day, blue sky with a few white clouds, students walking in the background, backpacks and laptops, professor standing in front of a blackboard, equations and formulas written on it, wooden desks and chairs, green grass, outdoor benches, bicycles parked nearby, natural light pouring through the windows, 3/4 composition, shallow depth of field.