Readers recommend ancient cities,imposing temples and caves from Mayan, Inca and even earlier cultures The cave is in fact a long overhang of rock on the side of a canyon. For thousands of years it was a seasonal camp for the semi-nomadic Tehuelche people. And during all that time they left paintings of the silhouettes of hands – there are nearly 1000 of them.
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Source: theguardian.com