The Most Ridiculously Oversized Guns in History

Oversized artillery reached absurd extremes not just for spectacle, but because a few weapons were engineered to solve specific battlefield problems—then became logistical nightmares, political symbols, or unfinished ambitions. The most striking through-line is scale: from bronze cannons weighing tens of tons to railway guns measured in hundreds of tons, each leap in size aimed at longer range, higher ceilings, or deeper penetration, often at the cost of speed, secrecy, and practicality.

The list begins with the Dardanelles Gun (often spelled “Dardanels” in the transcript), a bronze cannon cast in 1464 in what is now Turkey. At 16.8 tons and over 5 meters long, it fired massive stone balls up to 63 cm wide. Its unusual legacy is that it was not merely a medieval relic: in 1807—340 years after casting—it was brought back into service during the Dardanelles operation against the British Royal Navy. The bombardment reportedly killed 28 British sailors, and the cannon later became a gift to Queen Victoria, eventually ending up at Fort Nelson in Hampshire.

Next comes the Tsar Cannon, a Russian bronze behemoth cast in Moscow in 1586 by Andre Chokov. Weighing 39.3 tons and measuring 5.3 meters long, it was designed as a symbol of Russian power and industry rather than a combat tool. Still, residue found in at least one study suggests it may have been fired at least once. Built to launch 800 kg of stone “grape shot,” it earned the nickname “the Russian shotgun” and holds the record for the largest muzzle-loading cannon ever built.

World War I introduced a different kind of excess: the German Paris Gun. With a 34-meter barrel, it launched 106 kg shells to roughly 40 km—high enough to make each projectile’s flight last about three minutes, forcing targeting calculations to account for Earth’s rotation. The shelling reached targets over 130 km away, and early reports from civilians mistook the soundless, high trajectory for a zeppelin. The gun fired between 320 and 367 shells, killing 250 people and wounding 620, including a major casualty event from a shot into a crowded church. As Allied forces advanced, the Germans dismantled it and destroyed schematics.

In World War II-era planning, the Germans returned to extreme artillery with the Gustav railway gun (and its sister, “Gandora”). Designed to break through the French Maginot Line, it was meant to punch through up to 7 meters of concrete or 1 meter of steel armor. The required scale was staggering: an 80 cm caliber weapon weighing over 1,000 tons, supported by two railway tracks, firing 7-ton shells. Although it arrived late for the Maginot Line, Gustav saw combat at Sevastopol, with a barrel over 30 meters, a weight of 1,350 tons, and a range near 40 km. Operating it demanded a massive crew—250 men just to keep it running—plus 1,250 engineers, scientists, and guards to assemble it over four weeks using 25 trains. It remains described as the largest-caliber rifled weapon used in combat and the heaviest mobile artillery piece ever built.

The final entry shifts from completed hardware to a geopolitical fantasy: Big Babylon, a supergun project backed by Iraqi President Saddam Hussein and led by Canadian artillery expert Gerald Bull. Built around a smaller prototype called Baby Babylon, the plan for Big Babylon was to be over 156 meters long, weigh about 2,100 tons, and fire 2-ton projectiles into orbit for globally guided strikes. When Iraq invaded Kuwait in 1990, Bull was assassinated in Brussels in March 1990, and the project died with him—leaving the world with a record of ambition that never reached the battlefield.