Marc-Oliver Hendriks has already shown many politicians and journalists through the Stuttgart Opera. The neoclassical building made of ocher-colored sandstone is one of the most beautiful buildings in the city, which was badly damaged by the war and which has not necessarily been rebuilt with a lot of concrete. What the managing director offers his interested guests, however, is a small horror show. Although you don’t know what is more frightening on the tour: the state of the opera or the prospect that it will cost more than a billion euros to remove it.