Driving in North America
I once took a trip to the UK and was brave enough (or dumb enough) to rent a car in London and drive around the country side. I drove down small town streets the wrong way several times and I nearly killed myself trying to navigate a roundabout twice.
As a passenger it was frightening. You sit there in what has always been the drivers seat to you yet you have no control over the vehicle.
It all completely screws with you brain.
We got to see Stonehenge tho, so that was great.