We never thought we'd mention Counter-Strike and Shadow of the Colossus in the same sentence but a modder taken CS: Source and made a level (named de_wanda) inspired by Sony's PS2 title.
It's quite pretty really - take a look at the screenshots, which have come from hl2world.com forums.
Admire it, admire the lovely hi-res textures, but good luck finding it running on any 'net servers. Apparently the file is so big it'd break the internet. Or something.
Still, people are getting excited by the grand Combine versus Colossus diaroma thingy, which can be seen in some of the screenshots. Hit the link above if you feel the need to download.