Have you heard about the U.S.’s two new nominations to the World Heritage List?

One is set amid the suburbs of Washington, D.C.; the other encompasses nearly 140,000 square miles in the middle of the Pacific Ocean. One gets more than 1 million visitors a year; the other rarely sees more than 16 a day. And while most sixth-graders know the story of the former, I can’t even say the name of the latter without phonetic assistance.