Maeklong train trackmarket, Samut Songkhram, Thailand

The Maeklong market
in Thailand is built directly over the train tracks. (See video clip here)
Four times a day the
vendors (with a one minute, audible, warning) have to clear their produce away
from the train tracks to make way for the train to pass through. Seconds after
the train has passed the market goods are set out once again and the tracks are
filled with customers.