9. Let there be light!
To accommodate the need for 24-hour operation, fluorescent lighting was installed in 1963.

10. U.S.A. is number one!
The U.S. uses the canal more than any other country followed by China, Japan, Chile and North Korea.

11. A long trek.
It’s obviously shorter than going all the way down and around South America but it still takes between eight and ten hours to traverse the canal.