Located in the city centre, Stephen's Cathedral is a symbol of Vienna. The church was built in the 12th century and is the third tallest in the world. From the outside, the entire church is full of Gothic style. It may be because of the age, the church has a sense of smoke, and the church tower is towering into the sky. It is spectacular. Because it is located in the center of the center of Vienna, it is also known as the "Heart of Vienna". The church tower is 136.7m high and its height is second only to Cologne Church and Ulm Church, ranking third in the world. The church was built in the 12th century of the Gregorian calendar. The earliest architectural part is the current gate and the door walls on the left and right sides. It is a Roman architectural style. After the Habs dynasty ruled Austria, the church was re-expanded and two towers of the north and the south were built. Made in the South Tower, it has a height of 136.7m and has a Gothic architectural style. Built in the north tower, it has the taste of the Renaissance. We arrived just in time for a mass, and the scene was extremely sacred. Let me not have a religious belief, I can't help but awe.