Cars are smaller. Streets are narrower. Space is not wasted in Denmark - probably because there isn't a lot of it. But nothing else is wasted either. They lead the world in many things, including recycling.
Aluminum cans are non-existent, and all bottles are recycled.
But they have a recycling center in every grocery store - and you get the money back when you return the empties. That's not the only unusual thing we noted about Denmark. Its streets are always filled to overflowing with people. And with bicycles. Everybody bikes everywhere in Denmark, Copenhagen especially.