Today we visited the Boston Museum of Fine Arts, where we saw Pannini's
Picture Gallery with Views of Modern Rome. The placard said that he has painted 4 pictures that are similar. I am sure we have seen at least 2 of them previously, but I can't remember exactly where. I googled Pannini, and one of them seems to be in the Staatsgalerie in Stuttgart, where I have never been. I would guess that I saw them in Rome (at the Vatican Museum?) and at the Kunsthistorische Museum in Vienna.
Has anyone else seen these pictures, and if so, where?