The famed rice terraces in the Philippines are man-made, which is what makes it such a wonder. Built 2,000 years ago by hand, the Banaue Rice Terraces are often referred to by Filipinos as the “eighth wonder of the world.” It’s said that if all the steps were laid side by side, they would encompass half the globe. Today, numerous tourists trek up the Ifugao mountains to see the terraces, which are still used to plant rice and vegetables.