To you, a perfectly ordinary sidewalk.
To me... a radical transformation of my personal geography.
My office is tucked into a corner of the downtown Northwestern campus and this building has been under construction for four of the last five years I've worked there. For four years I had to walk on the other side of the street whenever (a lot) I headed southeast from my office. The sidewalk has been open for a couple of months now and still every time I find myself on it it BLOWS. MY. MIND.
(Of course, you can see the crane in the distance -- Northwestern has two other buildings under construction in the same area -- more sidewalks blocked for another four years).