Apparently, the land of Hyrule in ´Zelda: Twilight Princess´ will be massive. According to SPOnG, Nintendo announced that it would take Link 45 minutes to ride through the world on horseback. Here is some interesting maths to investigate this claim further:
If it takes 45 minutes, and horses gallop at 40MPH, that makes the distance 30 miles. If the world is square, that would make a 900 square mile playing field. However, we just realised that Nintendo obviously means from one corner to another. This being the case, (...) we estimate you'll be looking at about 441 square miles should the world be square.
Now, GTA: San Andreas has about 17 square miles, True Crime: Streets of LA features around 200. Zelda would be twice as large as that, judging from SPOnG´s conservative estimate. If the world is as big as 900 square miles, it would be roughly equivalent to the land of Azeroth in ´World of Warcraft´. Either way, if true, the size would set a new standard for single player games.
Thanks to: Sickr´s blog