What would you do oooo ooo for a ... [silly brain and those ear worm commercial jingles, now I want a Klondike®.bar]
What would I do WITH a SIM given to MEeeeee? [I can still hear the jingle tune, faintly :-/]
The possibilities are limited by my abilities, but if... if... that TOO... was... boundless. [stares off into space to daydream]
O.k.... I'm back. I need to focus. Let me get back to answering the question.
Based on my first world experiences, I would create (or at least attempt to create) places from my travels. The places that evoke a sense of time and place, to me. I would hope to translate that feeling to the visitors of the Sim. When I've traveled, I've enjoyed taking the time to learn about the place. I read the historical facts before I go. Then I don't over-plan my holiday, vacation or day. I leave time to daydream. I revel in the sights and sounds and smells. [However, I don't think smell can be translated into second life, yet.]
My favorite places in SL are the places that elicite childlike wonderment.
I would do that.
Or do something like this... but different