The cathedral of St. Mark is located in Venice's square of St. Mark's Square, built in 828, was rebuilt in the 11th century due to fire, but it is more than 100 years old. The church is named after the buried remains of St. Mark and was once the largest church in medieval Europe. The whole church is very magnificent, with Byzantine architecture, combining the essence of East and West architecture. The church is paid to visit, the decoration is said to be beautiful, and there are many rich art collections. We only look, but even the appearance of the church can feel its beauty. The arched Romanesque gates, the top east way with Gothic minarets and various marble statues, reliefs and floral patterns are worth seeing.