Natural ventilation, operable windows, clerestory windows, solar chimneys, wind catchers, stack effect, cooling towers, evaporative cooling systems, radiant floor cooling, displacement ventilation, airside economizers, heat recovery ventilation systems, energy-efficient fans, air filtration systems, humidity control, thermal comfort, indoor air quality, sustainable building design, modern architecture, green roofs, living walls, urban planning, cityscape views, clear blue sky, sunny day, soft natural lighting, shallow depth of field, 3/4 composition, panoramic view, realistic textures, ambient occlusion.