Loca residents urge Paris to clean up the Champs de Mars It's one of Paris's most iconic locations, but the Champs de Mars park that lies at the foot of the Eiffel Tower is leaving some visitors disappointed. Complaints range from a lack of greenery to worse: rats scampering about in broad daylight and toilets streaked with feces -- and local résidents are urging the city to do something about it. An AFPTV voiced report.