Google Data Center Street View

http://www.youtube.com/watch?v=avP5d16wEp0

http://www.google.com/about/datacenters/inside/streetview/

Google Server Racks, Mayes County, Oklahoma

Each of their server racks has four switches, connected by a different colored cable. They keep these colors the same throughout their data center so they know which one to replace in case of failure.