The largest swords ever carried around were called "bearing swords". They could be well in excess of 2m in length, and 5-8 kg in mass. To get a sense of the size of these things, here is one at the National Museum of Scotland. The swords on the left and right are "regular" two-handed swords, and pretty large as swords go. The center sword is obviously very, very, very large.

However, as the name implies, their purpose was simply to be paraded around, usually as a symbol of office or authority. They were not sharpened, and were way too cumbersome to use as an actual weapon. It was all part of a widespread tradition of using exaggerated weaponry as a symbol of authority, a traditional which still exists today. Ceremonial maces (that one is from the Canadian parliament) are quite common, for instance. But bearing swords still see some use, such as this one from Worcester. London uses both, because it's London.

Not swords of that size, no, they would be prohibitively heavy.

There is a brief period in the mid-late 15th century into the 16th century (in Europe) where a small number of soldiers made use of two handed swords that were almost as tall as they were. These swords weren't anywhere near as broad or thick as the swords in those pictures though.

The Japanese Odachi/Nodachi was also very long, but again, nowhere near as wide as the fictional examples you've provided for us. A sword that heavy would be basically unusable.