A Magazine called Weapons of WWII has featured some of Hitler's secret Nazi Weapons in the Autumn 2015 issue. The article shows weapons you'd expect to only hear of in sci-fi movies such as sonic cannons, x-ray guns and land cruisers.
Horten Ho 229
A secret bomb known as the Fritz X is seen as an early predecessor of the modern smart bomb. It works as a glide bomb being control via radio and can carry over 700lbs of explosives.
Another piece of advanced weaponry was known as the "flying wing" bomber which was designed to carry around 2000lbs of armaments and travel at a speed of 600mph. It was officially known as the Horten Ho 229 and was the world's premiere stealth aircraft.