"Maeklong Railway Market, located in Samut Songkhram, Thailand, 1-2 hours drive from Bangkok. It looks like any other open-air market in Asia. There are tropical fruits and vegetables such as lychee, durian, and mango in big brightly colored piles, variety of dried spices, pastes and herbs, freshly caught seafood and other local foods. The crowd weave their way around in between vendors, picking up whatever they need for the day. The market is sheltered by low-hanging awnings/umbrellas and if you look closely, you will notice that you are actually walking on train rails.
Then a piercing siren sounds and in a flash the market transforms - the shoppers disappear and the stallholders whip away their produce. One moment you see the locals shopping for their vegetables and the next moment the vendors will scoop up their baskets and boxes and anything that lies over the track. The market comes to a standstill as all the vendors hold on to the poles supporting their awnings to make way for the train to pass. It is such a tight squeeze that the train travelling at about 15mph almost touches the fruits, vegetables and everything else at the marketplace as it passes through."