1943
National Gallery of Art, 1936
National Gallery of Art, 1575
National Gallery of Art, 1887
National Gallery of Art, 1930
National Gallery of Art, 1964
National Gallery of Art, 1425
National Gallery of Art, 1933
National Gallery of Art, 1940
National Gallery of Art, 1971
National Gallery of Art, 1932
National Gallery of Art, 1547
National Gallery of Art, 1884
![Opening of the Porta Santa [reverse]](https://api.nga.gov/iiif/edb9be78-a870-4bac-8b5d-328132f6886e/full/843,/0/default.jpg)
![Stadtansicht (Cityscape) [p. 19]](https://api.nga.gov/iiif/524b0a65-61a5-4a1f-a9bd-166dcde6bdb9/full/843,/0/default.jpg)