Sweden's Hidden Solar System: A Celestial Surprise
The Avicii Arena in Stockholm, Sweden, is not only the largest spherical building in the world but also the center of the world's largest scale model of the solar system. The Sweden Solar System features models of planets, comets, and other celestial bodies distributed across Stockholm and other parts of Sweden on a scale of 1:20 million. The model currently consists of over 60 objects in 26 locations, with plans to add more scale models in the future.