Crank it to 4K and go full-screen to feel as if you're floating through the International Space Station. It's cool to think about how quaint this technology will look someday, like a wooden sailing ship, but for now, it's still mind-blowingly cool.
The best part is it's overlaid with a red map that shows in yellow where the camera is in the station. The nice thing about the fisheye is that the field of view shows that every available space is brimming with technology. It's 20 minutes set to relaxing music that you can leave on as you work on other things.