Kasteel Wartburg (1867 - 1870) by Moritz Ulffers, Alexander Michelis, Breidenbach and Co and Breidenbach and Co https://www.rawpixel.com/image/13764694/image-dragon-paper-frameFree Image from public domain licenseKasteel Wartburg bij Eisenach (1891) by Junghans and Koritzer and anonymous https://www.rawpixel.com/image/13754863/kasteel-wartburg-bij-eisenach-1891-junghans-and-koritzer-and-anonymousFree Image from public domain license