NOVA explores Earth's greatest natural wonder by rafting down the river that created it, repeating the spectacular first canyon voyage of the 19th-century explorer John Wesley Powell. The Grand Canyon tells the story of nearly 2 billion years of earth history plus the changes caused by three decades of human intervention.
Le recensioni appariranno qui una volta che i membri condivideranno i loro pensieri.
Ancora nessuna musica
Aggiungi colonna sonora