Transcript for Space Shuttle Endeavour's Nightmare Commute
different kind of journey, "endeavour" trying to come home. It wasn't easy as everyone thought. Try getting it through a suburban neighborhood. Abc's abbie boudreau is in los angeles. Reporter: Inching along at a mere two miles per hour, it's hardly the kind of high-speed chase we're used to seeing in los angeles, but it's just as much of a nail-biter. Here the shuttle came within millimeters of hitting this street lamp. Pretty amazing. It feels like I'm a part of history. Reporter: "Endeavour" has already made an incredible 25 missions to space traveling 122 million miles, but its journey on the ground has been a logistical challenge. Just imagine trying to clear enough space for a 78-foot wingspan. That's half the width of a football field. The shuttle weighs 80 tons. That's the equivalent of 42 cars, so heavy that thousands of metal plates were used to reinforce the roads. Nearly 400 trees had to be cleared from its 12-mile journey. Even power lines were raised to make room for the tail, which stands five stories tall. And liftoff for the final launch of "endeavour." Reporter: And after 25 dedicated years on the job, "endeavour" completed its 3-day, journey home to the california science center where it can finally enjoy some well-deserved time off. Abbie boudreau, abc news, los angeles.
This transcript has been automatically generated and may not be 100% accurate.