Yup! It’s the northeast of Thailand in Nongkhai. It’s a small border town with Laos, which is on the other side of the river.
Backpackers traveled by train to Nongkhai to cross over to Laos. It’s an hour from the border immigration office to Vientiane. Then tourists either go to Wang Wieng or Luan Prabang.
Nothing interesting in Nongkhai except for the old temple and famous Buddha statue.