Riding the bamboo train in Battambang, Cambodia. This photo is about six or seven ...

... years old now... The kids all look so tiny.

The bamboo train is basically a flat bed made of bamboo which sits on 2 train axels on the rail line. The motor is an old diesel truck engine.
There is only one rail line for traffic flowing both ways, when two meet, the one with the least people hops off and removes the engine, the flat bed and then the axels allowing the other "train" to pass by, before reassembling your cart and continuing on your journey.

What an amazing experience, my kids called it the Lego train.