Walls
- Author
- iHeartPodcasts
- Published
- Tue 08 May 2012
- Episode Link
- https://omny.fm/shows/stuff-to-blow-your-mind/walls-1
Civilizations surround themselves in walls. They raise walls against enemies, against the environment and against the spirit world. In this episode, Robert and Julie examine walls, from Ming Dynasty battlements to the galactic borders of our universe.
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