» Tue Dec 06, 2011 10:06 pm
IIRC, Daggerfall's game world was 2000x1000 DF cells wide... With my own measurement of the game (which, admitedly, could be horrifically flawed) I'd managed to replicate the "over twice the size of Great Britain" claim originally fielded in 1996 by achieving 680,555 mi2; this assumed each exterior cell was 3,080x3,080 feet. The ~62,000 mi2 statements would, assuming they count water, rely on a cell size of closer to 933x933 feet. Chances are my original measurement, which assumed each of the "sub-blocks" in each exterior cell were the same size as Morrowind's cells (3852 ft.) is likely over-sized.
As far as the walking distance goes, ignoring the fact that a diagonal route across the map would cross at least a couple hundred miles of the waters of the Illiac Bay, you'd be looking at between 395-1,304 miles; in real-world time, taking two weeks would mean you'd be going between 1.16 to 3.88 MPH.
As for Arena, as Mingorau mentioned, isn't a continuous world: it consists of separate zones that each generate out into infinity. It is IMPOSSIBLE to travel from one town to another without using fast travel. Using the fast-travel map's estimates of distance, you can use that to determine the size of the world map, but it doesn't really have any impact on the game save for calculating travel times: it more of serves as the original lore basis for the size scaling of Tamriel.