Photo: 25. Jon, Ultimate Sand Castle, CC BY 2.0, 24. Sevensteps2heaven from nl, Gerardus Mercator sand sculpture, CC BY-SA 3.0, 23. Photographer Amos Gil, PikiWiki Israel 5142 sand castles, CC BY 2.5, 22. Wikipedia Commons.com (Public Domain), 21. Wikipedia Commons.com (Public Domain), 20. Photographer Amos Gil, PikiWiki Israel 5137 sand castles, CC BY 2.5, 19. Photographer Amos Gil, PikiWiki Israel 5153 sand castles, CC BY 2.5, 18. Corpse Reviver, Sandcastle of Himeji castle Ju10 15, CC BY-SA 3.0, 17. Rob McCready via flickr. CC BY 2.0, 16. Wikipedia Commons.com (Public Domain), 15. Kgbo, Sand castle at Noosa Heads beach at night in November 2016, CC BY-SA 4.0, 14. Kauaiwaves, Banner of the Hawaii Sand Festival and Sand Sculpture Contest, CC BY-SA 4.0, 13. Rob McCready via flickr. CC BY 2.0, 12. Diego Delso, Playa de Levante, Benidorm, España, 2014-07-02, DD 04, CC BY-SA 3.0, 11. (Neozoon), Sand sculptures Thorn – Michiel de Ruyter, CC BY-SA 3.0, 10. Lisette Lebaillif, Keeping the Aztec Calendar Safe, CC BY-SA 3.0, 9. Rodw, Sand Sculpture at Weston super Mare of Game of Thrones by Sergi Ramirez, CC BY-SA 3.0, 8. Rodw, Sand Sculpture at Weston super Mare of Robin Hood by Charlotte Koster, CC BY-SA 3.0, 7. (Neozoon), Sand sculptures Thorn – Knight Tournament – Ladies, CC BY-SA 3.0, 6. Paul Wilkinson from London, United Kingdom, FIESA sand sculptures – Music, 2015 (20713150881), CC BY 2.0, 5. Frank Vincentz, Xanten – Südsee – Sandkunst 12 ies, CC BY-SA 3.0, 4. El Coleccionista de Instantes Fotografía & Video via flickr. CC BY 2.0, 3. El Coleccionista de Instantes Fotografía & Video via flickr. CC BY 2.0, 2. @wreckandsalvage Salvage via flickr. CC BY 2.0, 1. Bernard Goldbach via flickr. CC BY 2.0