Bach Ma Pagoda, Old Quarter, Ha Noi. This area has a thousand years of history, and the white horse is important to the establishment of Ha Noi in this particular location. An apparition of a white horse appeared to the king (Ly Thai To) who was trying unsuccessfully to establish a citadel. The walls kept falling, so I've read. A white horse appeared to him and delineated an area where the king was able to erect walls and create the base for his city. Fairly obviously, a temple was erected and the White
Horse was honoured thereafter.