Across
- 3. History: Serbia and Croatia, as well as the disputed territory of Kosovo, were all part of this onetime Communist nation.
- 5. Astronomy: I was reclassified as a "dwarf planet" in 2006.
- 10. Recent history: Chesley "Sully" Sullenberger landed a plane in this unorthodox but necessary location.
- 12. Geography: This street, the financial center of America, probably got its name from a wooden barrier.
- 14. History: You probably have a portrait of this Revolutionary War hero in your wallet.
- 17. Geography: In terms of square miles, I'm the smallest state in the U.S.
- 18. Geography: Come here to take in a Braves game or visit the "World of Coca-Cola" museum.
- 19. Mythology: When in Rome ... you'd call me Jupiter!
- 20. Geography: Visit this country's Provence region to see the fields of lavender.
Down
- 1. Science: This Swede was a giant in the field of taxonomy (the naming of species).
- 2. Geography: If you want to visit this city, you're likely to land at O'Hare or Midway.
- 4. Geography: You'll find the Tomb of the Unknown Soldier and JFK's "eternal flame" here.
- 6. This Mormon leader was the first presidential candidate to be assassinated.
- 7. Notable people: This larger-than-life author lived in both Key West and Cuba.
- 8. History: This group awards a highly prestigious Peace Prize with the same name.
- 9. Science: I'm still a star in Hollywood, although I was wiped out about 66 million years ago.
- 11. Science: This element, which has a "Valley" named after it, makes up 25 percent of the earth's crust.
- 13. Sports: This American swimmer holds the most medals of any Olympian.
- 15. History: These unassuming little islands were the cause for a war in 1982.
- 16. Books: Her first draft of "Pride and Prejudice" was called "First Impressions."