Continuing a trend, here's a photo of something that fascinated me in the Dominican Republic. They would thatch the roof of any building they could with palms from local trees, interweaving them into one continuous roof. They worked like a charm, too. The dining area where we stayed was covered with this thatching, and when it rained we never got a drop of water on us.
So naturally, I took a picture of it from the inside. It's 1.51MB if you want to download it.