Below: Picture 1 is the former American prison in the Canal Zone. Now, it is Panamanian run, housing famous Panama dictator Manuel Noriega.
Pictures 2 to 4, 6, 10 and 11 show ships traveling to the Pacific.
Picture 5 shows a tug boat doing a fire drill, checking how well its hoses work.
Pictures 7 to 9 shows a shovel dredging the canal.