Retro-futuristic gymnasium, eclectic architecture, sustainable energy harvesting, solar panels, green roofs, eco-friendly materials, recycled rubber flooring, minimalist interior design, natural ventilation systems, abundant daylight, soft warm lighting, shallow depth of field, 3/4 composition, panoramic view, realistic textures, ambient occlusion, vibrant colorful accents, geometric patterns, modern athletic equipment, state-of-the-art technology integration, innovative fitness tracking systems, motivational quotes, inspirational wall art, airy open spaces, calm atmosphere, serene ambiance.