The past 100 years is filled with insane tanks. Starting with France's fearsome Char2c in the early 1920s and ending with the highly capable M1 Abrams battle tank in service today, tanks have become a fixture of the modern battlefield—and these are five of the biggest tanks ever conceived.

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RealLifeLore breaks down these tanks, comparing their weight, size, and armaments. Although four of the tanks described in the video—M1 Abrams, Char 2c, K-Wagen, and the Panzer VIII Maus—were eventually built, other designs like the Landkreuzer P.1000 Ratte were just too crazy to exist. Looking at just its sheer specifications, it's hard to imagine any engineer honestly believing such a tank could be possible.

The Landkreuzer would have weighed 1000 tonnes, or the equivalent of 16 modern Abrams tanks with 30 percent of that weight coming from munitions alone. It would have also been powered by two German U-boat engines, giving the Landkreuzer 16,000 horsepower. With that much power, this metal monstrosity could still travel roughly 25 miles per hour.

Of course, Germany never made the Landkreuzer since it was too easy a target for aerial assaults. But Germany's obsession with bigger and bigger tanks also contributed to its eventual defeat in World War II, according to Real Engineering, confirming that when it comes to tanks—bigger isn't always better.

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