The sea borders the countries Italy, France, and Monaco, and the Tyrrhenian and Mediterranean Seas. Genoa is the most prominent city in the area. The northwest coast is noted for its scenic beauty and favourable climate. The Tyrrhenian Sea is part of the Mediterranean Sea off the western coast of Italy. ... Location within Italy Flag of Genoa Christopher Columbus monument in Piazza Aquaverde Genoa (Italian Genova, Genoese Zena, French Gênes) is a city and a seaport in northern Italy, the capital of the Province of Genoa and of the region of Liguria. ...