Eco-friendly skyscraper, green roofs, solar panels, wind turbines, water conservation systems, recycled materials, low-carbon footprint, energy-efficient lighting, natural ventilation, rainwater harvesting, grey water reuse, composting facilities, organic gardens, urban farming, bee hotels, birdhouses, living walls, vertical forests, minimalist design, circular economy principles, zero-waste policy, renewable energy sources, electric vehicle charging stations, smart grid systems, intelligent building management, real-time energy monitoring, sustainable transportation options.