Lucca is a city on the Serchio river in Italy’s Tuscany region. It’s known for the well-preserved Renaissance walls encircling its historic city center and its cobblestone streets.Lucca is a city on the Serchio river in Italy’s Tuscany region. It’s known for the well-preserved Renaissance walls encircling its historic city center and its cobblestone streets.Lucca is a city on the Serchio river in Italy’s Tuscany region. It’s known for the well-preserved Renaissance walls encircling its historic city center and its cobblestone streets.Lucca is a city on the Serchio river in Italy’s Tuscany region. It’s known for the well-preserved Renaissance walls encircling its historic city center and its cobblestone streets.