megan bednarz is a museum educator, and she'll be our guide. how are you? >> hello. very good. how are you? >> good. so, let's go look at submerged. yeah, let's do it. >> all right! so, this is it? >> yeah, this is it. this is an overview of the history of submarines. it all started with the turtle during the revolutionary war. >> that little thing? >> yeah, that little thing right up there. it was designed just to go deep enough to be below a wooden ship and just poke some holes in it hopefully sinking the ship. the submarine that you can find at our museum is the uss growler, and that was a grayback class. so, that could go about 300 feet, and since then they have just gotten bigger and faster. >> all right, so now we have -- what do we have here? >> here we have berthing, which is the living area, the sleeping area. as you can see, there's not a lot of space. so, this box here would be where you had to fit all of your prized possessions. >> everything? >> everything. >> had to be very careful, huh? >> yeah, you had to be very, very choosy. and oftentimes you might be sleepin