The city on the Vistula River is Warsaw, which is the capital of Poland. It is located on the east bank of the Vistula River and is the largest city in the country. Warsaw has a long and rich history, having been founded in the 10th century and becoming an important cultural and political center in the 16th century. It was destroyed during World War II but was rebuilt after the war. Today, it is a vibrant and modern city with a population of over 1.7 million people.