Duomo di Como is a Gothic-Renaissance cathedral located in Piazza del Duomo in the heart of Como. Construction began in 1396, and the building features a striking façade adorned with statues, rose windows, and intricate carvings. Inside, visitors can admire 16th-century frescoes, tapestries, and altarpieces by artists like Bernardino Luini. Its Renaissance dome, completed in 1740 by Filippo Juvarra, is a prominent landmark in the city.