I have no idea what I did, but it looks like a house. It took me 2 hours to make and it will take tons of material and much more time if you do it in survival. The house has some torches to light it a bit. The rest is up to you. Decorate it how you wish. Enjoy!
PS 1: I ain't gonna make another senseless house like this.... never :(
PS 2: In one of the pictures you can see how it looked at 50%