Chicago

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Across
  1. 4. Chicago's Founder
  2. 5. Nation’s second-largest public transportation system
  3. 6. 1900 massive and highly innovative engineering project
  4. 9. The starting point of “Historic Route 66”
  5. 10. Downtown Chicago’s underground pedestrian system
Down
  1. 1. Total number of major league sports teams
  2. 2. Destroyed one-third of the city in 1871
  3. 3. Chicago’s downtown area
  4. 7. Motto
  5. 8. Nickname