Heading deep inside Colossal Cave in southern Arizona

Arizona is home to several natural wonders from Sedona to the Grand Canyon. The state's beauty is always on full display. But tonight, we head to Vail in south Arizona, and go below ground to show you one of Arizona's hidden treasures. FOX 10's photojournalists Brian Kae and Joe Tillman take us on a tour of Colossal Cave.

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