At airports and public spaces around the country, there are vestiges of phone booths from days gone by. Most establishments have removed them and replaced them with something else entirely, but the Denver airport repurposed them into private workstations. While passengers may not require the physical phone itself, they still appreciate the sound buffering that the padded sides afford as well as the desk space in order to accomplish their work.
Think about spaces you have in your organization. Have they remained stagnant or outlived their usefulness? Perhaps you could refresh them to add a different level of functionality: the counter that holds the fax machine could become a clear workstation, an alcove could gain a small table instead of just seats to make it easier to work on a laptop, tellers could sit at a desk instead of behind a counter or hotels could replace spaces that hold physical phones and alarm clocks with wireless printers for their guests.
Just because something claimed a space at one time does not give it the right to keep it forever.