I'd like to have offices in a ring around the globe, maybe one in every other time-zone, each with an open floor plan and two opposite walls set up as full video walls with cameras and two-way connections so that it supports the illusion of looking into the neighboring offices through windows. There would be sound if you're standing close enough, and several scanner/printers (FAX machines lol!) connected so that you could feed a hard-copy to someone on the "other side" of the "window".
It would be so cool to look "across" the distributed meta-office and SEE the day/night cycle all at once though the real windows in the offices.
I once suggested that to a company which had two locations that weren't getting along. Put up a teleconferencing link in their break room and leave it up. Unfortunately, this was before bandwidth was cheap enough this was a no-brainer.
Look up research on "media spaces" if you're interested in the practical applications of this kind of feature. Just one example paper, but there are many more: https://www.billbuxton.com/DGPmediaspace.pdf
Digitally creating a "portal" like this can be considered roughly analogous to connected spaces in real life. So, for example, two break rooms across different campuses of the same company, or a couple in a long-distance relationship that would ordinarily live together if not for whatever was keeping them in LDR mode stand to benefit from this sort of continuous video communication.