The classic scenic spots in Frankfurt must be visited. The Gothic architecture is majestic and solemn. There are many people on weekends. The interior decoration is classical and spectacular. It has German flavor. However, we must pay attention to the quality of our people when we enter them. Because there are always believers sitting or kneeling silently praying. Don't disturb them, and don't take random pictures. After all, it is very sacred. Where tourists can go in, they must follow the custom and do not destroy the tranquil atmosphere.