Rostock Water Tower in Rostock, Germany - photo by wolfro54, via Flickr, on The World Geography; Built in 1903, it is 197 feet high with a diameter of 59 feet at the base. It is made of bricks in a pattern with seven stepped gables and blind windows. It has been out of service since 1959. It is now a historic building and city museum warehouse. The ground floor is used for meetings.