There’s nothing more fun, particularly for kids, than marveling at the earthly unknown, where the existence of certain structures or phenomenon—Stonehenge, the Integratron, Roswell—defy simple explanation. The trips below offer the prospects of alien interventions, unknown ancient civilizations, conspiracy theories, and cover-ups, making them mystical, summer trip gold.
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Though most archaeologists now agree that Stonehenge was constructed by Stone Age societies around 2 ... Read even more
