Panzer VIII Maus
Panzerkampfwagen VIII Maus ("Mouse") was a German World War II super-heavy tank completed in late 1944. It is the heaviest fully enclosed armoured fighting vehicle ever built. Five were ordered, but only two hulls and one turret were completed before the testing grounds were captured by advancing Soviet military forces.
Oil tanker
"Supertankers" are the largest tankers, and the largest man-made mobile structures. They include very large crude carriers (VLCC) and ULCCs with capacities over . These ships can transport of oil/318,000 metric tons. By way of comparison, the United Kingdom consumed about of oil per day in 2009. ULCCs, commissioned in the 1970s, were the largest vessels ever built, but the longest ones have already been scrapped. By 2013 only a few ULCCs remain in service, none of which are more than 400 meters long.