3. Green Papakolea Beach, Hawaii

One of only two green beaches in the world, the other being located on the Pacific Island in Guam, the Green Papakolea Beach in Hawaii looks as if it has lush, grassy dunes as a beachfront, instead of the obligatory sand, stones and shells. In fact it is a fascinating natural phenomenon of the olivine crystal deposits that are found everywhere on the shore, giving it an illusion of looking like grass.