Even in our age of developed industrial technologies the appearance of the larger man made objects being assembled out of steel touches me, when the people working on the ship or submarine are hundreds of times smaller than the metal giant they are building. So I can imagine how impressive this was a hundred years ago when it was fresh and those achievements of human engineering were just popping up for the first time. Building something half the size of the Titanic in a wooden barn really should look tremendously awesome for the ones who could take a peek inside. We can take a look inside, too.
This was the battleship GANGUT, built in 1911. More about it can be found on a wiki. It was a large ship at the time, and you can see larger photos of it by clicking on them.