(GMT)09 MAR 2017 NIFR:
California Science Center does provide both local and overseas visitors a close-up look on the master piece of technology. Truly worth going before they put it in upright. You can pretend you've made it to space in some of the simulators or just stand in awe looking at the actual Space Shuttle Endeavour, and Apollo, Gemini, and Mercury capsules, as well as models of various satellites
Take Metro and buses. Definitely it takes longer but sure one can save a lot. The stop for the science center is Expo Park/USC on Expo Line.