1. Punalu'u on Big Island, Hawaii
2. Harbour Islands in the Bahamas
The pink color in the sand comes from microscopic animals known as Forminifera, who have bright pink shells.
3. Hoshizuna no Hama on Iriomote Island, Japan
Hoshizuna no Hama means star sand beach. The sand looks like stars but is actually the skeletons of tiny one-celled organisms that live among the sea grass.
4. Giant's Causeway in Northern Ireland
5. Kaihalulu Beach on Maui, Hawaii
This red sand beach formed from the eroded wall of a cinder cone.
6. Bowling Ball Beach in California
7. Glass Beach in Fort Bragg, California
The Fort Bragg city dump was once located here. It closed in the 1960s, but broken glass remained and over the years it's become smooth. A similar glass beach exists on Kauai, Hawaii.
8. Hidden Beach in Marieta, Mexico
9. Papakolea Beach on Big Island, Hawaii
The green sand of this beach is made up of olivine crystals from the cinder cone just east of the beach.
10. Hot Water Beach in Coromandel, New Zealand
11. Scala dei Turchi in Sicily, Italy
Scala dei Turchi is Italian for "stairs of the Turks" and is famous for the white colors of its "stairs," which lie between two beaches.
12. Vik Beach in Iceland
13. Pfeiffer Beach in Big Sur, California
The sand here ranges from fuchsia to royal purple and is made from manganese garnet deposits.
14. Boulders Beach in Cape Town, South Africa
15. Red Beach in Santorini, Greece
16. Shell Beach in Saint Barthélemy
Tons of shells piled everywhere.