Traveling without leaving home

I have a new obsession: Google satellite maps.

I have been revisiting summer 2004 with startling aerial clarity. I can walk myself from my London flat to the building that doubled as our school for the semester. I have retraced the meandering walk from Florence's Duomo past Piti Palace to the steps of Piazza Michelangelo before having to rush back to rehearsal.
It's amazing how time flies when having fun. I've spent a few hours already traveling the only way I can right now. I need to get across the pond again soon. I feel a sort of homesickness that's somewhat lessened by these little pictorial visits.