Île de la Cité is a small island located in the Seine River in the heart of Paris, France. It is one of the two remaining natural islands in the river and is known for its historical significance. The island is home to several important landmarks, including the famous Notre-Dame Cathedral and the Sainte-Chapelle. The island has been inhabited since ancient times and was the site of the original settlement that would become Paris. Today, Île de la Cité is a popular tourist destination, attracting visitors with its rich history, stunning architecture, and picturesque views of the river.