- A space or street surrounded by skyscrapers.
2007, Neil Wilson, Prague:
- Take the metro to Háje at the end of line C for a stroll among the concrete canyons.
- William P. Hammond, 911 tribute poem at ipsna.com:
- Concrete Canyons are but now spacious sky,
- Her children weep for the parents who died.
- A narrow street circuit surrounded by concrete walls.