windmills, energy, power
windmills, rainbow, fields
science, physics, atom
lightning, clouds, thunderstorm
lamp, light, hand
pinwheels, energy, electricity
blackout, power failure, night
energy saving, recycling, garbage
light bulb, energy, light
mills, castile-la mancha, windmills
windmill, field, grain
hot air balloon, ballon, ballooning
sunset, windmills, silhouettes
storm, cloud, nature
