Resurrect Dead: The Mystery Of The Toynbee Tiles - 2011 - 7/10

Strange documentary of tiles placed in asphalt streets of dozens of cities
Cryptic messages and questions posed.
Who placed them? Who was Toynbee? What did the tiles have to do with 2001 or Jupiter?
Narrator begins the global hunt for more tiles and tries to penetrate the mystery.
Fascinating story that quickly draws you in and retains interest throughout.
This very reminiscent of In the Realms Of The Unreal, also worth hunting down.