The term SEINE CITY refers to four cities located along the Seine River in France. Paris, with five letters, is the capital of France and one of the most visited cities in the world. GAPES, also with five letters, is a commune in the Seine-Maritime department in the Normandy region of France. Rouen, also with five letters, is a city on the River Seine in the north of France. Troyes, with six letters, is a commune in the Aube department in the Grand Est region of France.