Paris Marathon: Mile 5
Having taken a course through what is probably one of the least remarkable roads on the route, runners are welcomed back to some more interesting scenery.

It's another mile until the next water station, but if you're getting desperate there's always this fountain...
Another ornate roundabout to dart round here. If the wind is blowing in the right direction, some runners are likely to get a light dusting of cooling spray. This is either a good and refreshing thing, or a likely cause of uncomfortable chaffing in the later stages of the race. Keep a wide or narrow berth, depending on your particular perspective on this conundrum.
It should be noted that if you’re planning to run the shortest distance you can (i.e. not unnecessarily extending your marathon by taking an inefficient course), the apex of the roundabouts so far is on the inside.