Hidden gems: Water treatment plants in Heidenheim an der Brenz, Germany

Discover the city's hidden treasures—remarkable spots that are relatively undiscovered but offer exceptional experiences. Our selection criteria? A rating of 4.5 or higher with fewer than 150 reviews. Explore these lesser-known yet outstanding places that promise a delightful visit in Heidenheim an der Brenz. This list contains 2 places from Water treatment plant category.