Desolate maps?

[Obsidian]

Can anyone recommend me a large, desolate map? Low monster count, a bit of platforming and puzzling, similar to E3M1 of NEiS and MAP04 of Panophobia(I know they aren't on IdGames, but they're the only examples I can think of). Any maps like that around?

EDIT: Spelling.

[Khorus]

Map01 in Ni'mrod. Some of the later maps would count, too.

EDIT: Now that I think about it, Phobia: The Age would also fit.

[Cynical]

Asylum of the Wretched fits the bill just about perfectly:
http://www.doomworld.com/idgames/index.php?id=10984

[NaturalTvventy]

Map e3m1 of Chris Lutz's Inferno was the inspiration for NEIS e3m1.

http://www.doomworld.com/idgames/?id=9188

[Darch]

Alexander Eternal comes to mind.

Voodoo Guns is full of desolated epicness:
http://www.doomworld.com/idgames/?id=16645

Gravity
http://www.doomworld.com/idgames/?id=15467

Hell Ground features a non monster map:
http://www.doomworld.com/idgames/?id=15919

[Megalyth]

Phocas Island 2 fits this request somewhat. While not really "desolate" as such, it has many wide-open areas that really instill a surreal sense of being completely alone, and a great atmosphere to go with it.

[Zed]

Zones of Fear Map10. A puzzle level. It may be your cup of tea.

EDIT: You may also want to take a look at Map24 from 1 Monster Megawad

[Demon of the Well]

Try 'Sacrament' by Clan [BOS]. It's got a number of maps in it that should be right up your alley, particularly 02, 12, and 13. I'll probably try to get the DWMC to play this sometime during one of the inevitable 'episode months.'

http://www.doomworld.com/idgames/index.php?id=16475

[Grazza]

Off the top of my head:
The Ana's Dream
Eye of the Beholder II map03 (not really desolate or huge, but fits the rest of the description quite nicely)

[yakfak]

also worth mentioning: ALT.WAD - most of the levels are large, to the point where Boom is required, and tend to feature platforming and switch hunts. If you play 'em on easy it's basically a new Hexen campaign :B

[Xaser]

STRAIN MAP21 comes to mind.

Also, BTSX E2 might interest you then once it's out. :P

[Grazza]

Xaser said:

STRAIN MAP21 comes to mind.

Though somewhat spoilt by the "skip the whole map if you want to" instant exit.

[Scripten]

I'm really surprised that no one mentioned Hellcore 2.0. The entire set is filled with desolate maps. Frankly, the gameplay isn't great, but there is a wonderful atmosphere to the whole thing.

Hellcore 2.0

[Memfis]

Played Necron Fortress yesterday, a very weird desolate map. You will spend most of the time in a large castle with very few monsters, trying to find hidden passages and figure out confusing as hell teleporter puzzles. You might need about 50 minutes to beat it.