The Panzerkampfwagen VIII Maus was a WWII engineering marvel - and a massive failure. Weighing 188 tons, it was the heaviest tank ever constructed ... and 70 Footage of colossal squid captured ...

The Maus Super-Heavy Tank was a WWII giant. Learn about its design, power, and why it never saw real combat. Landmark Voter ID Bill Passes Kurt Russell delights fans as he reunites with co-star ...

The Panzerkampfwagen VIII Maus was one such weapon. It was impractical and also huge — so huge it holds the record for the heaviest fully-enclosed tank ever built. The Maus weighed 180 metric tons.