The stream in the sky

This is apparently the other name for the Pontcysyllte Aqueduct Nr Llangollen. I'll go with that as its certainly a lot easier to pronounce and spell!
Mono Mondays theme today (hosted by GoranZebuhr) is Another Brick in the Wall. So got a few bricks in the aqueduct and that is a selection of walls that must have been very challenging to build. 
Its great to walk across it, the views are incredible, but very strong winds give it a whole new dimension, so today's visit was brief!
Dramatic and Dangerous Places to Photograph for the Terminally Unfit and Navigationally Challenged