There's a picture art book called Revisiting Eugene Atget's Paris which compares a famous photographers' early 20th century photographs of Paris and similarly-exposed black and white shots from the same position almost 100 years later

You're right, Atget's work is also particularly interesting! Here's a link to some of his pictures: http://openpn.tumblr.com/tagged/Atget

Yup, just noticed how the modern pharmacy sign on the left is in the same location as a very similar (though red instead of green) sign ~100 years ago.