Have you ever seen bees being kept inside the house? It looks like there’s a “tunnel” for them to get in & out thru the window.
via The People Against Modern Farmhouse
I love these SO MUCH and want to build myself one at some point. Observation hives are so cool. (Though you really need to keep them in a dark room or keep a cover over them when you’re not watching them to avoid stressing them out too much.)