Massive Castle

After a year of work this castle is a bit less than half done. In the main tower most tower functions (cannons gates lighting, can be controlled inside the control room. There is a total of 100 tnt cannons including 8 railguns (over a kilometer range). There are submarines with a floodable room. Massive lava gates. Combination locks and massive redstone circuitry help to control various castle critical functions. The central tower is the center of defense with a "lava curtain" and lava floodable rooms. In addition there are buildings that self destruct and bridges that build themselves. It is also kind of pretty to look at. There is also a "time machine" which is a nether portal that takes the person to a destroyed version of the castle (lakes drained and tower in ruins with tomb stones). Will upload video later. If anyone has any questions or wants to see things from different angles or even see the circuitry, comment and I will post pics.