Most people know that in the UK, people drive on the left side of the road (vs. in the states where we drive on the right), but it doesn't stop there! Everyone patterns their walking on the left (as seen in the picture) and escalators also follow suit.
When I started thinking about this, I thought about the expression 'right of way' (i.e. at a 4-way stop sign, you are supposed to yield to the car on your right) and how it shouldn't apply - but I couldn't remember ever hearing a 'left of way' saying. So I began to visualize a intersection over here (usually a roundabout), a driver would actually be yielding to the 'right of way' as they circle clockwise. So the expression is universal
As everything is online, I found some good stuff on wikipedia (including the roundabout pic) if you want to read more, here is the link;
http://en.wikipedia.org/wiki/Traffic
