This is the outside of the conference building (2017), that was built for the NSDAP during the NAZI regime in N"urnberg. The building looks like the colloseum in Rome. But its far bigger. The plan of the designer Albert Speer was to built a roof on top of this building. It would have been the biggest roof of the world. Because of WWII it't couldn't be completed. Another example for the vicious combination of mad politics, obedience and high tech.