It's a looooong photo of all the buildings along the Grand Canal....both sides. When closed it's 5 - 1/2" X 13"....open it's 5 - 1/2" X 40'.....
All the sites are labeled and many also have the century they were originally built.
A real joy for those of us that still love picture books!!
(ps...if you want to see all the books I've posted...click on the LABELS: Books link on the lower left)