This episode of "Secrets of the Dead" is a very interesting one. Researchers are investigating a series of shipwrecks of ancient Roman-era vessels. While they weren't carrying treasure in a traditional sense, they are interesting because of their cargo--mostly foods and cooking equipment used by common and not so common people. Amphorae, mortar and garum are among the things they find.
If I was still teaching, I'd love to show at least part of this to my students in history class. Much of it is worth seeing, but I know that my old high school students would have loved to learn about garum--because it seems very disgusting. It's a sauce made out of fermenting raw fish and the Romans loved it--and the crew of the ship doing the dives decide to try making it themselves. It's pretty nasty looking--and that's EXACTLY the sort of thing kids find interesting. I doubt if I could have gotten the kids to actually try eating it, however! Well made and a nice glimpse into the lives of the ancients--particularly Augustus Caesar's unruly daughter.