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.
TI-class supertanker
The TI class of supertankers are currently the four largest ships in the world (by displacement, deadweight tonnage (≈ cargo mass), and gross tonnage, a formula value based on internal volume, not mass). The class comprises the ships TI Africa, TI Asia, TI Europe and TI Oceania, where the "TI" refers to the VLCC Tanker Pool operator Tankers International L.L.C. The class were the first ULCCs (ultra-large crude carriers) to be built in 25 years.