Monument Men

By Justin Davidson - 2013-09-12T16:02:49Z

Florian Holzherr/©James Turrell

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Extinct Volcano

Called Roden Crater, it is set inside the caldera of an extinct volcano. He found the site, an hour from Flagstaff, in 1974. Four decades and $13 million later, Turrell has carved the caldera into a warren of stairways, tunnels and chambers. 

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