The Basilica di San Marco, located in Venice, Italy, is a stunning example of Byzantine architecture. Built in the 11th century, it features intricate mosaics and a grand façade adorned with sculptures. The basilica serves as the cathedral of the Patriarchate of Venice and is dedicated to Saint Mark, the patron saint of the city. Inside, visitors can admire the opulent interior, which includes over 8,000 square meters of mosaics that depict biblical scenes. The basilica is also known for its impressive Pala d'Oro, a golden altarpiece encrusted with gems, making it a significant religious and artistic landmark.