See London as you have never seen it before, at this major free exhibition. Maps and views from the British Library collections bring the city's transformation to life.
The old Chicago Public Library, now the Chicago Cultural Center. Top photo taken 1903. Chicago Daily News negatives collection, DN-0001239. Courtesy of the Chicago Historical Society.
Find an old picture of a location, then take a picture at as close to the same spot as possible. Then, combine the two pictures side-by-side or top-and-bottom, and upload it here with a description of the location.