For road builders, there are many considerations: water ways, mountains, hills, rocky soil, and many other things I remain blissfully unaware of as someone who only drives on roads.
But in Iceland, there is another consideration: elves.
As you may have heard, road construction in Iceland was stopped when many were concerned that it would upset the elves living in the area.
Spoiler alert: it was resumed when the elves agreed to have their chapel moved to another location.
(h/t Conor McWay)