via Vietnam Net, 13 December 2022:
The iconic pagoda, which is regarded as a unique architecture in Vietnam and Asia, is a spiritual destination representing the thousand-year-old culture of the capital city.
Also known as Dien Huu Tu (Pagoda of Permanent Blessings) or Lien Hoa Dai (Lotus Tower), One Pillar Pagoda (or Chua Mot Cot in Vietnamese) is located on the street named Chua Mot Cot in Ba Dinh District, Hanoi.
The One Pillar Pagoda was built in 1049, under the reign of King Ly Thai Tong. According to folklore, once in his dream, the childless king saw Phat Ba Quan Am or the Goddess of Mercy sitting on a lotus throne with radiant halo around her head and handing him a baby son.
Source: One Pillar Pagoda: a symbol of Hanoi’s millennial culture