Definitely an pic that requires a bit of explanation...
The above is a camera obscura image of Wat Phra That Lampang Luang, a 700-year old temple compound outside the northern Thai city of Lampang. On the grounds of this temple is tiny elevated room with a small hole in the door. A white sheet hangs inside, and the light projected through the hole creates the (upside down) image shown at the top. For some reason, women are not allowed in this particular part of the temple.
Here's what the temple looks like:
For larger version of this image, go here.
I put my camera on a tripod and used a 15 second exposure (at ISO 400, f/4.5) to get the pic at the top. Would be fun to put a piece of photographic paper in place of the sheet; I'll bet the colours and textures would result in a fascinating image, perhaps something like this: