Bangkok Noi Canal: Beginner's Route
The first thing you'll notice is the gold pavilion on your left. It's a monument to King Rama V and his infant son who died of dysentery, which I mentioned earlier.
Just beyond the pavilion is a full-size steam locomotive, set in front of a brick building that was the original Thonburi Railway station. This was used by the Japanese during WWII to get supplies and POWs out to Kanchanaburi and the River Kwai so that they could build the Death Railway. As the war wound down, the station was nearly destroyed by allied bombing, but rebuilt in the 1950s to the original design.
Modern road and rail infrastructure eventually made the station less and less important, and eventually this land was donated to Siriraj Hospital and turned into a park.
Keep following the path alongside the river.