Operable windows, clerestory openings, solar chimneys, green roofs, living walls, natural convection systems, cross ventilation, stack effect, wind towers, atrium spaces, internal courtyards, shaded outdoor areas, overhangs, louvers, jalousies, breathable materials, earth-sheltered buildings, passive design principles, low-carbon emissions, sustainable architecture, modern eco-friendly designs, bright airy interiors, soft natural light, gentle breezes, peaceful ambiance.