Fantastically designed levels/locations/etc. in vidya

[Futan]

Portal. All of it.

(SPOILER)

I'd say both Half-Life 1 or 2 too. Valve has some of best level designers in the industry.

In terms of purdiness, from XI, this was the most beautiful zone in the game in my opinion:
(SPOILER)
CoP_2010July12_0L.jpg
Some would argue maybe this one instead:
(SPOILER)
9d11d23fbcace133c4bebe97d329a46a.gif
This was a purdy area from Skyrim:
(SPOILER)
72850_screenshots_2012-02-18_00003.jpg

I can't really think of anything else. Don't pay much attention to areas unfortunately. Or I guess I just don't remember them would be more accurate. :x