Berlin, Germany, towers of the Kaiser Wilhelm Memorial Church, and the Europa Center Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/stock-photo-berlin-germany-towers-of-the-kaiser-wilhelm-memorial-church-and-the-73964329.html
RME89A75–Berlin, Germany, towers of the Kaiser Wilhelm Memorial Church, and the Europa Center
Mausoleum of Hadrian, usually known as Castel Sant'Angelo or Mausoleo di Adriano, Rome, rebuilt by various popes into a castle, 2nd Century, Historische, zeichnerische Darstellung, das Mausoleum für Kaiser Hadrian, heute die Engelsburg (Castel Sant’Angelo oder Mausoleo di Adriano) in Rom, von verschiedenen Päpsten zur Burg umgebaut, 2. Jahrhundert, aus Meyers Konversations-Lexikon, 1889 Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/mausoleum-of-hadrian-usually-known-as-castel-santangelo-or-mausoleo-di-adriano-rome-rebuilt-by-various-popes-into-a-castle-2nd-century-historische-zeichnerische-darstellung-das-mausoleum-fr-kaiser-hadrian-heute-die-engelsburg-castel-santangelo-oder-mausoleo-di-adriano-in-rom-von-verschiedenen-ppsten-zur-burg-umgebaut-2-jahrhundert-aus-meyers-konversations-lexikon-1889-image247673767.html
RMTAXEBK–Mausoleum of Hadrian, usually known as Castel Sant'Angelo or Mausoleo di Adriano, Rome, rebuilt by various popes into a castle, 2nd Century, Historische, zeichnerische Darstellung, das Mausoleum für Kaiser Hadrian, heute die Engelsburg (Castel Sant’Angelo oder Mausoleo di Adriano) in Rom, von verschiedenen Päpsten zur Burg umgebaut, 2. Jahrhundert, aus Meyers Konversations-Lexikon, 1889
Reconstruction of the Kaiserpfalz in Kaiserswerth am Rhein, palace of Frederick I Barbarossa, Holy Roman Emperor in 12th century Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/reconstruction-of-the-kaiserpfalz-in-kaiserswerth-am-rhein-palace-of-frederick-i-barbarossa-holy-roman-emperor-in-12th-century-image569163941.html
RM2T1YJBH–Reconstruction of the Kaiserpfalz in Kaiserswerth am Rhein, palace of Frederick I Barbarossa, Holy Roman Emperor in 12th century
Germany, Aachen Cathedral city skyline isolated vector illustration. Germany, Aachen Cathedral travel cityscape with landmarks Stock Vectorhttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/germany-aachen-cathedral-city-skyline-isolated-vector-illustration-germany-aachen-cathedral-travel-cityscape-with-landmarks-image334141770.html
RF2ABHD6J–Germany, Aachen Cathedral city skyline isolated vector illustration. Germany, Aachen Cathedral travel cityscape with landmarks
Mausoleum of Hadrian, usually known as Castel Sant'Angelo or Mausoleo di Adriano, Rome, rebuilt by various popes into a castle, Stock Photohttps://www.alamy.com/licenses-and-pricing/?v=1https://www.alamy.com/stock-photo-mausoleum-of-hadrian-usually-known-as-castel-santangelo-or-mausoleo-48123169.html
RMCP85GH–Mausoleum of Hadrian, usually known as Castel Sant'Angelo or Mausoleo di Adriano, Rome, rebuilt by various popes into a castle,