Everyone has heard of Joshua Tree in the Mojave Desert and for good reason. It is like no other place on earth. The landscape is other worldly, of course largely due to the joshua trees themselves, but also because the rock formations are so beautiful and stunning. One writer who writes really well about the Southwest is Edward Abbey. If you appreciate part of the world you should get your hands on his books. I visited in the rain, so I barely got out of my car, but you could absolutely drive around for days or better yet do the many trails and just not get bored.