If you're anything like me, you might think these images are the designs for a mouth-wateringly cool sci-fi film. Or maybe the next James Bond. Neither. I was actually disappointed to learn that somebody wants to really build this thing. Suddenly all my fun is gone... and maybe I'm just jaded enough to suspect that a project like this will never really get off the ground (or into the water, as the case may be).
The purpose: an excavation of an ancient city named Seuthopolis, in Bulgaria. It's a city which was explored as recently as 1954, but is now submerged beneath an artificial lake.