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Majlis al Jinn Cave, Oman
Photo: Majlis al Jinn cave in Oman
WALLPAPER
An explorer descends into the Majlis al Jinn cave in Oman. At more than 50 stories deep, it's one of the largest caves in the world. The cavers' mission is to determine if Oman's deep caverns could be safe for tourists to enter.
Photograph by Stephen Alvarez

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