Wat Chaiwatthanaram

Wat Chaiwatthanaram (วัดไชยวัฒนาราม) Is another monastery that is on the bank of Chao Phraya River, on the west of the city island. King Prasat Thong commanded it built. The great beauty has been reflected from the main stupa and its satellite stupas along the gallery, an architecture influenced by Khmer. Travelling can be made by river form Chantharakasem National Museum. A long-tailed boat service is available at 300-400 baht for a round trip, consuming about one hour.

Thank you information from wikitravel.org