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