The arch spans the highway that connects North and South Korea, except that, as can be seen… there are no vehicles on that highway.

So, why build a highway that doesn't have a use?

Well, since the time of Kim Il Sung, there have been discussions to reunify the two Koreas.

To the Western mind, there would be two immediate questions: "Why do they want to reunify?" And, "What's stopping them?"

To answer the first question, it's an ideal opportunity, as each has something to offer the other.