After watching this guy take up a challenge to walk across an entire country in a straight line: I am wondering if there is somewhere in North America where you can take off and land and never deviate from a single heading. The planning for this challenge would require a reconnaissance that would take into consideration terrain, airspace, weather and aircraft performance. This would be a full fuel load, not some short hop. That would be cheating. Finding suitable landing surfaces might be an issue. I'll do some chart recon and see if this is possible.