As in U-166, a German U-boat from World War II which was lost somewhere in the Gulf of Mexico and recently found.
Or as in Carnival of the Vanities #166, presented this week by Don Surber's Pajamas Media, and how he got media in his pajamas I'll never know.
(Update, 11:45 am: Maybe I will know after all.)
Just how many german WW II U-Boats are out there still undiscovered? i mean america captured one U-Boat in all of WW II its the U-505