"Facing worlds" was one of the best maps of Unreal Tournament, a legendary capture the flag map with multiple sniping positions, Ultimate Weapons (The Redeemer) and a crazy space theme. This map was one of my favorites back in the day, and now it lives on in Counter-strike: Global Offensive!
Check out a video of "Facing Worlds" made by Mr Error:
As my logo might suggest...Like it :)