When my wife and I visited Ayutthaya Historical Park last year, we ended the day at a restaurant called Ruean Kanya to try out the famous giant river prawns. While sitting along the Chao Praya River, I noticed a building on the other side which I googled later and found out was a church named St. Joseph Church. This lovely little church, bright yellow in color, is the oldest Catholic church in Thailand. It was built in 1666 following a request of the Vietnamese missionaries headed by French Bishop Lambert de la Motte.
Photo credit: ใต้เพิง / trekkingthai.com