Inside Vehicle Assembly Building (VAB) High Bay 4, Space Shuttle Atlantis sits in storage after being moved from Orbiter Processing Facility #1 on June 29, 2012. Atlantis will stay inside the VAB until mid-August when Endeavour leave OPF-2 so crews can finish preperations for Atlantis display.

This massive blast door would seal off the bunker from all the violence happening outside.