The large blue circle in the center of the photo is the Sun and is part of a to-scale representation of the Solar System on the Riva in Zadar, Croatia. The display begins far back on the promenade that runs along the Adriatic Sea. Furthest from the Sun is Pluto, represented by a small disc, followed by Neptune, Uranus, Saturn, and Jupiter. After another stretch of empty space, Mars, Earth, and Venus appear as tiny specs in comparison to the massive sun. Each panel is also a solar cell that generates electricity for the city.