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Joe Ryles in Mesa Verde National Park, USA
I shielded my eyes from the sun and stared up ... . The only entrance was a ladder. It’s ... – pull up the ladder and no attacker could get anywhere near! I was in Mesa Verde National Park, Colorado, ... , the abandoned cave dwellings of the Anasazi, an ancient Native American tribe. Some of these communities had as many as 1,000 rooms and ... . Our guide took us into a kiva – a subterranean chamber which stays a cool 10°C all year round. It seemed the Anasazi, a people who mysteriously vanished over 700 years ago, had discovered the answer to air-conditioning ... ! I took so many photographs that day that ... !