Across
- 3. An underground train system
- 5. A path beside the road for walking
- 6. A part of a city formed mainly by buildings for people to live
- 7. A place where people wait for buses or trains
- 8. A public open area in a city, often with buildings around
- 11. A place where cars and vehicles travel
- 12. The presence of contaminants in the environment
- 13. A wide road for fast travel between places
- 14. A place where sick people go to be cured
- 16. Small hard blocks used to build walls
- 17. A hard building material made from cement
- 18. A clear material used for windows
Down
- 1. The first floor at street level
- 2. An area of the city composed of several buildings near each other
- 4. Signals that control when cars and pedestriansstop and go
- 8. A very tall building
- 9. A group of people that run a city
- 10. A part of the road for bicycles
- 12. A person who is walking
- 15. A green area with trees and benches
