Across
- 6. The Romanov grand duchess rumored to have survived execution
- 7. Five siblings who vanished after a 1945 house fire
- 8. A mysterious land referenced in ancient Egyptian texts
- 11. Unknown figure who may have filmed JFK’s assassination
- 13. Pioneer aviator who disappeared over the Pacific in 1937
- 14. The Lost Colony whose settlers vanished without trace
- 17. Undeciphered script found on Easter Island tablets
- 19. The massive carved heads on Easter Island
- 20. A cloth revered by some as bearing Christ’s image
Down
- 1. Ancient Italian civilization whose language remains partly unknown
- 2. A creature rumored to dwell in a Scottish lake
- 3. A ghost ship found adrift in 1872 without its crew
- 4. Site of a supposed treasure pit with hidden booby traps
- 5. An advanced Bronze Age culture with an unreadable script
- 9. A legendary sunken island described by Plato
- 10. The skyjacker who vanished after parachuting with ransom
- 12. Enigmatic geoglyphs etched into the Peruvian desert
- 15. Young Egyptian pharaoh whose tomb was linked to a curse
- 16. A prehistoric monument with debated origins and purposes
- 18. An allegedly haunted fortress in India shrouded in curses