These houseboats ply the backwaters of Kerala. They were originally used as cargo boats until trucks took over. With the boom of tourism in the area recently, the number of these boats has skyrocketed. This was taken at dawn near Allapuzha, India.
A green roof, or 'living roof' really helps regulate the temperature of a house or building, keeping it cooler in the summer and warmer in the winter. You can even graze your goats on them! Indeed: goats can climb ladders, they are quite agile!