In Clive Cussler's Sahara (which became a decent action flick with Matthew McConaughey and Penelope Cruz), the adventurers discover a derelict Confederate blockade runner buried in the sands of the Sahara Desert that just happens to have lots of Confederate gold bars in its hold.
The name of the ship was the Bom Jesus, from Portugal. Here's the neat part:
"It was found by the miners as they drained a man-made salt water lake along the Skeleton Coast, and while plenty of shipwrecks have been discovered along the stretch, this was the oldest and the first to be loaded down with coin and ivory tusks."
Now, what I'd like to know is why this is news in the Daily Mail and Fox News (and other media sources) in 2016, when the ship was actually discovered in April 2008. My guess is that they have finally been able to excavate it (but the articles don't say that). Either that, or they waited until now to announce it, considering that it's on private diamond mine land. (Beach, actually.)
Still, it is a pretty amazing story -- not just based on a true story, but an actual true story.