Is it true that there is a Civil War submarine buried under a street in Charleston?

asks Mike L, from Montgomery, Texas.

Yes and no, Mike. A torpedo boat (which looked a lot like a submarine, but never fully submerged in the water) was definitely abandoned and left to rot in the water by what is now Tradd Street near Rutledge Avenue (the photo taken in 1865 gives a pretty good view of it). In 1998, a team using ground penetrating radar found anomalies under the pavement of Tradd Street which resembled the boat. But since that area has long been filled in and is now under Tradd Street, it was never excavated. Pretty cool to think it is there though.