If you want to cross the border from Thailand to Laos by land, please take a look.
I took a sleeper train from Bangkok to Nong Kha and went to Vientiane without using an international bus.
00:00 to Bangkok station
03:43 Sleeper train departure!
07:38 Arrive at Nong Khai to the border
08:28 border crossing
09:44 Laos border to Vientiane
#thailand
#bangkok
#laos
#nongkhai
#vientiane