The mid-19th century Parisian sewage system often overflows on rainy days, causing rain and waste waters to pour into the river. Flags will inform bathers about pollution levels in the water every day ...

台北市长蒋万安前往法国巴黎将出席巴黎协议签订10周年全球城市论坛，21日适逢夏至也是一年一度的「法国音乐节」（Fete de la Musique），蒋万安与巴黎市长Anne Hidalgo等巴黎市府团队、去年台北「白昼之夜」客座策展 ...