dm_bast, created by Ryan "Belgarion" Butz, based on "ns_bast" by Kevin "Relic25" Roberts for "Natural Selection", a Half-Life mod.

Construction time: 9 days (including beta testing)
Compile time: aproximately 25 minutes
Compile PC: Athlon 2400+ (133fsb), 768 Megs PC2100 RAM

Interesting notes: The map has 2450 brushes, 167 cubemaps, 60 unique textures totaling almost 28 megs, and takes up over 60 megs of RAM while loaded in VHE. 
This started because of a small contest in the NS mapping forum, in which people were asked to recreate a small section of an official map in Source. Search "sourceified" in the NS forums if you want to see it.

Thanks to:
Relic25, for creating the awesome NS map known as "bast"
Mitchell "msleeper"/"Reaper" Sleeper, for making lots of suggestions and helping with beta testing.
Hibame, for hosting the beta tests on his server
lemonstale, Raz, and RPG:Code Master for helping beta test the map.
Everyone involved with the creation of NS (causing Relic to make bast in the first place)
And Valve, for making HL, HL2, and the (I find) incredible Source engine, which I grow to love the more I use it.

Finished Saturday, July 23rd, 2005