Down here in Cornwall we used to build a lot of them...but that was over 4,000 years ago. Recently our own Cornish Archdrude, Ed Prynn built his own 'Angel's Runway' in his back garden. For photo of such item see...
http://edwardprynn.tripod.com/id1.html
I am sure there must be someone on this site who has visited Ed....I keep meaning to..
Mr H