Men in green
The streets are meticulously cleaned daily by the men in green. 
An interesting feat of engineering allows the water to flow
under low pressure from the curbside openings into the gutters. 
This man with his broom helps sweep the water
and the floating debris back into the sewers. 
There are over 12,000 of these WOs (water outlets) in Paris.
Are you wearing green today?
Boulevard des Invalides
75007, Paris