Wikimedians exploring plants in an old railway cutting in Prague, and learning about uploading content to iNaturalist.

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Rendering plasterers on a building in Prague. They were working left to right, with a chap at the top hoisting buckets of mortar up from a chap on the ground: one rope, and some clever system of making sure each plasterer was kept supplied with enough full buckets.

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A train arriving at the Prague platform.