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Satellites capture a bizarre industrial complex in desert of Kazakhstan.

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Satellites capture dozens of parallel lines hidden in Polish woodlands.

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Satellites capture bizarre structures on the Greek island of Kefalonia.

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Satellites capture ruins amid bizarre structures on a Welsh mountaintop.

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Satellite images capture a triangular castle-like tower located on the Mediterranean island of Sardinia; experts investigate the relics of a declining ancient civilization that may have suffered a celestial catastrophe.

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Satellite images capture two conjoined circular structures embedded in the lush and rolling landscape of Ireland; experts investigate and uncover an ancient site linked to legendary figures and the elusive hunt for the Ark of the Covenant.

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Drone images capture oddly shaped towers in a forest clearing near Moscow.

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Satellites capture a series of zigzagging patterns in Polish woodlands.

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Drone images capture enormous holes scattered along the Dead Sea coastline.

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Satellites capture bizarre markings etched deep in the mountains of Spain.