This tiny coral atoll located among the Cook Islands in the Pacific Ocean is made up of sandy islets connected by a diamond-shaped coral reef. Palmerston Island is the top of an old volcano on the ocean floor, and the highest point of the island rises only 13 feet above sea level.
According to the island's website, ships visit with supplies only a few times a year. As the BBC reports, the coral reef sits too high in the water for sea planes to land, and outside the reef the ocean is too rough. (For that story, the writer spent nine days in a boat, unable to stand up, traveling from Tahiti.)
All of the 62 residents are descended from one man — an Englishman named Capt. James Cook who settled there 150 years ago, the BBC says.