span of one summer, the population doubles. They being constructions across the town on many villas; first around the Falaises woods and then on the Island of Villennes. In 1919, Villennes-sur-Seine is considered a tourist station as the whole town is transformed to look more like a resort. Boating, fishing and swimming in the Seine gain popularity and many parties on the riverside take place. In 1927, l'Île du Platais (otherwise uninhabited) welcomes a new pollution of vacationers in bungalows or tents in the Physiopolis center. Physiopolis brings in consistent amounts of people all throughout the summer and makes Villennes-sur-Seine a weekend getaway destination for the Parisian upperclass. World War II On a night in July 1944, a Germain plane crashes into a house on the Marolles farm, killing a couple in their sleep. The debris spread on a radius of 30 meters and to this day, a pit can be pointed out on the Marolles farm that corresponds to the location of the crash. The morning of the arrival of the American liberation forces in Villennes-sur-Seine, the 25th of August 1944, German forces present in the town are in search of suspects. Having been attacked the night prior, the soldiers arrest four men and bring them into the basement of a home: Michel and Jacques Jeunet, Alfred Boursinhac and Rodolphe Gerha. The soldiers through grenades at them, killing instantly Rodolphe Gerha and Michel Jeunet. The two others survive but are badly wounded. Population Activities in Villennes-sur-Seine Saint-Nicholas Church The Saint-Nicholas church is one of the oldest in the Yvelines. It is in the traditional roman style of the eleventh century and is composed of a nave, two aisles and a bell tower. On the inside of the church, decorative columns can be found as well as stained glass windows. Possible strolls around the town Stroll along the Seine A path along the Seine from the southernmost point of the town to the northernmost goes along the waterway with views of the water and the old homes of Villennes-sur-Seine. L'Île de Villennes The island, accessible by walking, is home to many old villas along the Seine. See also Communes of the Yvelines department References Communes of Yvelines