How Would You Like A Galaxy driveway? It is possible by using "glowstones" in your concrete mix, but it is not cheap. The upside of the extra expense I guess is that you wouldn't need any outdoor lighting as the stones hold light for around 12 hours.
olive trees in courtyard. Evergreen, soft grey tones, hardy and easily shaped. My husband really wants one of these in our garden so he can have an "on-tap" supply of olives and a reminder of my Italian roots.