Interesting facts A German architect built a cylindrical house in 1994 that rotates to follow the sun throughout the day, generates 5 times more energy than it consumes, and was the world’s first energy-positive house. Flavia Marinho 22/04/2026 at 19:42
Construction The Building in Germany That Rotates 180° Throughout the Day to Follow the Sun, Uses Solar Panels, and Produces 9,000 kWh On Its Own Valdemar Medeiros 08/12/2025 at 11:16
