Thanks to this morning's Recomendo newsletter, I've become addicted to "quiet virtual walks" through cities on YouTube. My favorite channels (so far) are Nomadic Ambience (worldwide fascinations) and Virtual Japan (walking Tokyo at night, among other Japanese and worldwide locales). And, while they can’t fill the commonwealth-sized hole in my soul, I've found quiet virtual walks of Boston (via The Table and Virtual Stroll) to be therapeutic doses of nostalgia for the city I called home for a decade (and in which I whiled many hours via solitary city walks at all hours of the day and night).