Extending square footage - Dhaka has high incidence of pedestrian injury and the government decided to put in pedestrian overpasses, or subways, almost every other block in the city center. (The hooded covers for the subways reminded me of the sections of a caterpillar, and I mistakenly thought them metro entrances - metro would be a great idea in theory, but the flood plain character of Dhaka would make it an enormous financial burden.)  Quite a lot of people actually use the overpasses as intended, but in a place where space is at a premium the added square footage is quickly taken advantage of.  We saw vendors on every overpass, two sleeping people (Felix felt it dishonoring to take the one sleeper from a more conventional angle) and some laundry out to dry.

As we drove out of the city to see their most famous Independence Memorial we crawled through areas still under water from the monsoon, or perhaps under water all year, and some of the farmers had built a lattice on stilts so that their gourds, pumpkins, and cucumbers could grow several yards further over the water and in the sunshine.  I'm not sure what happens as the crops ripen, but I was assured that the snakes in the water were not the poisonous kind.