Tickets of 105 thousand Dong (about 32 RMB) are too expensive for local people, so the sparse areas inside are all foreigners. Unlike domestic scenic spots, there are many people everywhere. In the 68-year Vietnam War, the Vietnamese Communist Army and the U.S. Army launched a fierce street battle here, killing and injuring tens of thousands of Vietnamese Communist Army. The imperial city was almost flattened. There are still a lot of ruins and broken walls inside. It is amazing that there is no explanation for this in the imperial city. It is a shame to the martyrs.