Across
- 10. Deepest freshwater lake in the world
- 11. Islands that inspired evolutionary studies
- 15. Novel featuring a scientist and his creation
- 17. Scientist known for developing a process that bears his name
- 18. Largest living rodent
- 19. One of the world's few remaining grand duchies
- 20. Olympic sport using foil, épée, or sabre
- 22. Astronomer who proposed a Sun-centered solar system
- 25. Precious metal denser than gold
- 26. Series of boat races
- 29. First national park in the world
- 31. Member of Japan's warrior class
- 32. Military ruler of feudal Japan
- 33. Sovereign ruler of an empire
- 35. Highest mountain in Africa
- 38. Country known as the Land of Fire and Ice
- 42. African island nation in the Indian Ocean
- 43. Home to the world's least densely populated nation
- 45. Blue gemstone often associated with royalty
- 47. Highest mountain in North America
- 48. Ancient Greek philosopher who tutored Alexander the Great
- 51. Opera composed by Georges Bizet
- 52. Largest island on Earth
- 54. Shakespeare tragedy featuring the Prince of Denmark
- 56. Amphibian that retains juvenile features into adulthood
- 57. Element with the highest melting point
- 58. Animal known for standing upright on lookout
Down
- 1. Title of an ancient Egyptian ruler
- 2. Racquet sport featuring a shuttlecock
- 3. Cue sport played on a pocketless table
- 4. Scientist and inventor who experimented with electricity
- 5. Citizen of a famously militaristic Greek city-state
- 6. Burrowing marsupial native to Australia
- 7. Event consisting of five different disciplines
- 8. Physicist who wrote A Brief History of Time
- 9. World's fourth-largest island
- 12. Wooden puppet who dreamed of becoming real
- 13. Mathematician who reportedly discovered a principle while bathing
- 14. Nation composed of nearly 1,200 coral islands
- 16. Whale sometimes called the unicorn of the sea
- 21. Gas famous for brightly lit signs
- 23. Green gemstone associated with May
- 24. Largest lake in Africa
- 27. Race combining swimming, cycling, and running
- 28. Bird famous for its enormous wingspan
- 30. Iconic volcanic peak of Japan
- 34. Epic journey attributed to Homer
- 36. Scientist who created the periodic table
- 37. Country that measures Gross National Happiness
- 39. Tchaikovsky ballet popular during Christmas
- 40. Waterfalls spanning Argentina and Brazil
- 41. Seafaring Norse explorer and raider
- 44. Combatant who fought in Roman arenas
- 46. Red gemstone traditionally linked with July
- 49. Armored medieval warrior
- 50. Primatologist famous for studying chimpanzees
- 53. Purple variety of quartz
- 55. Gas commonly used in balloons