Cool NPC Creations

In Minecraft, you occasionally encounter some really neat NPC (or non-player character) buildings, which are built by the villagers.  I've found NPC villages (the most common), temples, and one time, a house in the middle of the ocean.  Here are some screenshots.

These are all a sandstone temple in the middle of the desert.  I have found two of these so far.

There are also temples in the jungle, which are very cool because they have redstone tripwires and chests in them, and are very high-tech.

 Finally, I have some shots of this nifty little hut in the sea that I discovered in one of my worlds a while ago.  (In the background of a couple of the pictures, you can see my replica of a modern mansion in Florida.  It will have its own post in the next couple of days.)