Before coming to Xi'an, the fifth floor of Kaiyuan Mall was set as a must-check-in attraction for this trip. So as soon as we entered the mall, we took the direct elevator to the 5th floor. There are 2 observation decks on the 5th floor. One observation deck is relatively large. The other is relatively small, but I think the view is better. Not only can you see the clock tower, but you can also see the drum tower. Ps: The toilet also has characteristics!