Trace the Clue of Architecture on both banks of the Chao Phraya River

Chao Phraya River is a significant river of Thailand. It has its origin from the north by the
tributaries namely Ping, Wang, Yom and Nan flowing together and meeting at Pak Nam Pho District, Nakhonsawan Province and transforming into a big river running southwards through the following province: Uthaithani, Chainat, Singburi, Angthong, Ayudhaya, Pathumthani, Bangkok before exiting to the sea via Paknam or mouth of the river at Samutprakarn. Paknam area used to be the location of Chao Phraya District before. Therefore, the name of this river has derived from the name of the district that is Chao Phraya River.