Schwerer Gustav firing

Описание: the german railway cannon firing at the maginot line
*Edit: correction, thanks to a commenter, it did not ever fire at the Maginot line (as it was intended to initially), but instead was only used in warfare during the Siege of Sevastopol in 1942, where it was fired 47 times!
Sorry there is no sound, but hey, it's cool lookin!