Driving from LA to Joshua Tree (and back)


Hi, sorry if this is covered elsewhere but I couldnt spot it !
We are visiting from the UK and driving from LA (Valley Relics to be precise) out to Pioneer Town and just wondering on the best route to take ? Our preference tends to be towards man made oddities rather than natural beauty and we figure we will get our fill of that in Joshua Tree. Any route suggestions or links to guides already out there most welcome.
Thanks !