Overview
Hear how a crumbling hill in the Peak District and dunes in California caused the closure of two roads. Learn why a route used by the French Resistance shut in 2003.
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1 - 1Silent Cities February 18, 2017 -
1 - 2Mission: Space February 25, 2017 -
1 - 3Lost Bridges March 21, 2017 -
1 - 4Ghost Ships March 28, 2017 -
1 - 5Quest for Power April 04, 2017 -
1 - 6Roads to Nowhere April 06, 2017