Hi Jewelly,
I went to Gibraltar for the day too. We were visiting friends of friends who are natives of the place and therefore think it is amazing. Overall there is not much there and it is tiny. The airport runway goes over the main road onto Gib territory. It was very dusty, lots of new building, crowded roads. The views back to Spain were just of docks and cranes and industry. Not a pretty place at all. People only went to stock up on duty free etc.