One of my fondest memories is the moment I realized that I was walking and sitting in the same parks and benches that Heisenberg and Bohr did while they uncovered the secrets of the really small. Being in such an environment is ... quite special, it's different to the outside world.
It doesn't quite match the experience those two had talking with each other, but it was quite the experience.
There's a story that when Bohr came to pick up Einstein at Copenhagen Central station, they took the tram (line 1) to Bohr's institute in Østerbro, but they became so engrossed in their conversation that they went all the way to the end in Hellerup and back again.
Line 1 was later replaced by a bus, and until the metro opened a few years ago (when most of the busses were changed), you could still go the same route from the central station to the Niels Bohr institute. Or Hellerup, if you had someone interesting to talk to.
It doesn't quite match the experience those two had talking with each other, but it was quite the experience.