Did you know that the coat of arms of Paris, a river city that lies far inland, is of a ship? The motto of the city is Fluctuat nec mergitur, "It floats but doesn't sink."
The sign says "Service of the sewers"
Because of this, you can see a ship symbolizing Paris in many different places, from election boards (above) to doorways to Paris theater-poster kiosks.
The parking cards you need to park legally on the street in Paris
See how many you can spot as you walk around the city! There's even one more on this page.