It's a typical Wednesday lunchtime in Paris, the streets buzzing with tourists, terraces packed with tables, when the wail of an air raid siren fills the air.
원문출처 : https://www.cnn.com/travel/article/cold-war-sirens-france/index.html
원문출처 : https://www.cnn.com/travel/article/cold-war-sirens-france/index.html