>> like ancient pottery. >> big one. big one. >> and even more. so what are we looking at? >> you're looking at what you shouldn't be looking at. that is a perfectly preserved ancient ship wreck and all its wood. looks like a lumberyard. >> this ship wreck dating back to 500 b.c. was in surprisingly good condition, preserved because the black sea has almost no oxygen nap slows down decay. they even found an ancient mariner. >> you'll see a femur bone. >> you found remains. >> we've just begun. imagine what's waiting for us. >> ballard is now convinced that he will find evidence of a civilization from the time of noah, 7,000 years ago, that was completely washed away. i think perhaps most people, other than the true, true