The Cataquarium

Here’s one way to keep an eye on your cats during cold weather! Redditor ericscheel’s father has a farm and quite a few outdoor cats. He built a box around the outside of a window, complete with a shelf, small doorway, and a cat ramp. The cats cannot help but check it out, then discover it’s a nice warm place to be, and the people inside can see them all in one place. The converse is true as well: the cats get to observe what the people in the house are doing. See a larger version of the pictures here.