I had a job that involved a lot of travel back in the day. I worked for a telecoms installing unix workstations and oracle servers for planning radio networks (calculating signal strength per frequency over terrain and subscriber maps). I loved it, but it's not for everyone. Long periods on your own, sometimes in locked-down societies like Saudi Arabia. I ended up playing a _lot_ of Civilization 2. Still I got to go to Tanzania, South Africa, Bangladesh, Japan and lots of countries in Europe and the Middle East and occasionally got to do sight seeing at weekends. Not so great once you're married with kids.