THE NEW PALACE AT POTSDAM
THE CASTLE OF SANS SOUCI, POTSDAM
THE CATHEDRAL OF AIX-LA-CHAPELLE—TOMB OF CHARLEMAGNE
SCHÖNBRUNN, VIENNA
SALZBURG, AUSTRIA
| COLOGNE CATHEDRAL |
| COLOGNE CATHEDRAL (Before the spires were completed, as shown in a photograph taken in 1877) |
| BINGEN ON THE RHINE |
| NUREMBERG CASTLE |
| STOLZENFELS CASTLE ON THE RHINE |