Horses have been the great workers of the world for millennia, helping humans farm and move heavy loads that would have been impossible without them. Nowadays, as a result of their relationship with humans, horses come in many different sizes, shapes, and colors (due to selective breeding), and we can collectively remain in awe of their beauty as a result. Here are 15 of the world's most beautiful horse breeds: 1. Friesian 2. Akhal-Teke 3. Percheron 4. Trakehner 5. Haflinger 6. Rocky Mountain 7. Tinker 8. Arabian 9. Norwegian Fjord 10. Shire 11. Orlov Trotter 12. Gypsy 13. Knabstrupper 14. Pinto 15. Appaloosa