Big Guns, Blast From the Past

THE TSAR CANON IN MOSCOW IS ONE OF THE LARGEST EVER MADE, BUT NEVER FIRED.  PROBABLY WOULD HAVE BLOWN UP IN THE FACES OF THOSE TRYING TO FIRE.

SUPPOSEDLY THE LARGEST WHEELED CANON IS THIS MONSTER KNOW AS THE JAIVANA CANON.  THIS CANON IS 20'2" AND COMES IN AT A WHOPPING 50 TONS.