I wrote to Tim Berners-Lee after exploring CERN last week, looking for the location where the web was invented, his replies regarding the exact locations are below. [ I've put up photos of the excursion as an Oobject list, here ]
There is a plaque in a corridor in building 2, but no specific offices are indicated and there is some ambiguity as to what happened where, in building 31. Thomas Madsen-Mygdal has a gallery showing locations in building 31 and 513, but there are very few places on the web documenting these places. I took photos of the plaque, such as the one here, with Creative Commons licenses, so that they could be used elsewhere.
The reason I’m interested in this is that recognizing the exact places involved in the birth of the web is a celebration of knowledge itself rather than belief, opinion or allegiance, both politically and spiritually neutral and something that everyone can potentially enjoy and feel a part of.
Secondly, many places of lesser importance are very carefully preserved. The place where the web was invented is arguably the most important place in 2 millennia of Swiss history and of global historical importance.
Lastly, this kind of information is perhaps overlooked as being so obvious as to be common knowledge, exactly the sort of thing that sometimes gets forgotten. I’m not suggesting that the locations have indeed been overlooked, but they are not preserved or all indicated and the people I spoke to didn’t know the full details.
David, the author, was our neighbor here at Adafruit HQ.