Hitler also seriously attempted to build 1:2 railway lines, the infamous broad gauge railway, to carry trains of unprecedented size across Europe. And this was long before "eurail".

It's generally accepted that Hitler's plan was to move laughably large cannons around this way- canons which actually existed. I think Hitler only fired the Paris siege gun once in anger, but like...yea Paris fucking surrendered. The shell the Canon fired weighed more than a metric ton.