Across
- 7. Europe's second-longest river
- 9. Measurement of people per unit area
- 14. Countryside or less populated areas
- 16. Sea south of Europe
- 17. Sea in Northern Europe
- 18. A country in Southwestern Europe
- 20. Capital of the United Kingdom
Down
- 1. Landform surrounded by water on three sides
- 2. Moderate climate zone
- 3. City or densely populated area
- 4. Capital of Italy
- 5. Famous river flowing through Paris
- 6. Weather patterns over time
- 8. Political and economic union of European countries
- 10. Capital of France
- 11. Sea north of Europe
- 12. A country in Northern Europe
- 13. Extremely cold region
- 15. A military alliance including European countries
- 19. Dry or desert-like region