Here's a neat photo from the US Navy's website:
Souda Bay, Crete, Greece (Feb. 08, 2006) – Sailors assigned to the guided missile destroyer USS Roosevelt (DDG 80) man the rails as the ship arrives in Souda Bay for a routine port visit. Roosevelt is the 30th ship in the Arleigh Burke-class of destroyers. Roosevelt is currently on a surge deployment in support of the global war on terrorism. U.S. Navy photo by Mr. Paul Farley (RELEASED)
Hi-res version here:
http://www.navy.mil/management/photo...-0780F-011.jpg
(Something I would not want to see through a periscope!)