Wallpapers

Eidos gave out a lot of official wallpapers on the Tomb Raider 'Lara's World' website, in 17 sets, in sizes 640 x 480, 800 x 600 and 1024 x 768. [source]

800 x 600

1024 x 768

We must've found these elsewhere as they are in a bigger dimension than what was originally offered.
NB: These are in 1280 x 1024

These four wallpapers were offered out on the TR3 PGW Limited Edition transparent disks.

NB: These are in 800 x 600.