Here’s something you don’t see everyday…an Australian artist/furniture maker and owner of Pedulla Studios made a wall-mounted indoor observatory hive using Flow frames. The bees come and go via a PVC pipe drilled through to the exterior wall of the building. The project was commissioned by what I’m guessing is the company whose product is highlighted in the video on his website (see link below), Natural Life Propolis. Also below, a link to a 2017 Natural Life Propolis promotional video (not using Flow frames).
Pedulla Studio: https://pedullastudio.com.au/building-an-indoor-beehive/
Natural Life Propolis Promotional Video: https://www.youtube.com/watch?v=L35EUoEf7Bc