Wat Si Muang strongly differs from other temples of Vientiane not so much by its architecture, as its vividness. There are constantly a lot of faithful people here, coming from different cantons of the city and the country. High honouring of a monastery is beholden to a legend saying, that during a laying of the first stone in a foundation of the monastery, a woman called Nan Si carrying the child under her heart has rushed in the ditch.