CGRtrailers, from Classic Game Room®, presents the About Sky-Lines Featurette for BIOSHOCK INFINITE from 2K and Irrational Games. Learn about the unique systems of lines that connect the world of Columbia and how they were originally meant to be used and how they are utilized in this chaotic world in the sky. BioShock Infinite will be available for the PC, PlayStation 3 (PS3) and Xbox 360 systems when it is released. Enjoy!