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Forrrest Grump: Caen Hill locks.
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gerlinde.nitschke: Time tunnel (Explored)
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rd.gerdes: Relic of the Industrial Age
Frans Neve: Twijfel
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j3studio: Rocket!
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Rogpow: Workshop, Pen yr Orsedd Slate Quarry
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greensboropenguin: Gloomy day North Carolina