For me, travelling is a chance to expose myself - to a new and random set of research topics arising from beautiful sights around the world. A great question may spring to mind from the plane I board, the city I visit, or any sight, sound, smell, taste or touch .
The Ghandi quote on a school gate in Darjeeling expressed it eloquently: "Live as if you are to die tomorrow. Learn as if you were to live forever."
I have often joked that my ambition is to be a corpse with the most complete cosmic perspective I can manage.