This tour combines traditional sightseeing with the application of automatic narration technology through scanning a QR code to ensure the safety of visitors in the new normal. In particular, visitors can also admire and learn about three among many rare and precious treasures only at the Vietnam National Museum of History. They are "Ngoc Lu bronze drum" and the golden books and seals - the treasures symbolising the supreme power of the kings of the Nguyen Dynasty, the last feudal dynasty of Vietnam. The tour connects events and artifacts displayed in the Vietnam National Museum of History with the Hanoi Opera House and the historical relic of the Bac Bo Phu (now became the Government Guest House) from the perspective of architecture and historical events, thereby helping visitors understand more deeply as well as having new experiences in the tour.  To ensure safety, each tour group will have no more than 10 members and they have to keep a distance and do not contact with each other.  The "French architecture in the heart of Hanoi" tour will be held every Saturday and Sunday, starting  on October 23./.