The stone majesty of Poulnabrone Dolmen (“hole of sorrows”), in County Clare, Ireland, is not your typical rockin' destination -- it's a "portal grave" from the Neolithic period, built between 4200 and 2900 B.C. that offers a stunning snapshot of Stone Age life. Excavations have found the remains of nearly 30 people, along with bone pendants, quartz crystals, pottery and a stone axe, always handy for a quick trip to the grocery store. Ah, the good old days.
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