Schwerer Gustav - Hitler's giant gun - How it worked and why it

The Gustav gun was a gun about 12 meters high, 47 meters long, weighing 1,350 tonnes and was firing 10 tonnes shells through a 30 meters long pipe. 22 people could sit aligned on the barrel of the gun.

Schwerer Gustav: Biggest Gun Ever Used in Combat

The Nazis' Schwerer Gustav Railway Gun, The Biggest Gun Ever Built

Schwerer Gustav: Largest Gun Mankind Has Ever Built

Schwerer Gustav - Hitler's giant gun - How it worked and why it turned out to be a disaster

Dora railroad gun

Schwerer Gustav: Hitlers Enormous Gun

The UnMuseum: Schwerer Gustav - World's Biggest Gun

Would a giant Cannon, like the Schwerer Gustav be useful in the modern day? - Quora

World's BIGGEST / MOST POWERFUL GUN ever built! (Heavy Gustav Railway Gun.)

Schwerer Gustav - Rail Super Gun (Behemoth)

Of guns with, and guns on, rails How to Spot a Psychopath

The UnMuseum: Schwerer Gustav - World's Biggest Gun

South African Military History Society - Journal - HEAVY GUSTAV - The Story of a Gun