I have a long-term fascination with computers, and asides from fingers, my first digital computer was made from matchboxes and coloured sweets, to play Hexapawn. After that it was years until I got my fingers on an IBM1130 and IBM1620, and then a B6700. It's been downhill since then, thanks to microflaccid...
   Aside from computing, and Physics, I have made a number of lengthy overland journeys, by train as much as possible, e.g. from Singapore to Amman with stops at Xanadu, Lhasa, Samarkand and Damascus...