The Cathedral of San Francesco d'Assisi is a prominent church located in Assisi, Italy. It is dedicated to Saint Francis of Assisi, the founder of the Franciscan Order. The cathedral features stunning frescoes and a beautiful Romanesque-Gothic architectural style, making it a significant religious and cultural site. Construction of the cathedral began in the 13th century and was completed in the 14th century. It is divided into two main levels: the upper church, known for its vibrant frescoes by artists like Giotto, and the lower church, which houses the tomb of Saint Francis. The cathedral is a UNESCO World Heritage site, attracting many visitors each year.