Muhammed Boz

Muhammed Boz

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Muhammed Boz
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Alternating Tread Staircase

Sometimes bookshelves are built into staircases; Adam Jirkal, Jerry Koza and Tomáš Kalhous built this one into an alternating tread stair in Všenory, Czech Republic. Found in Archiweb; more in TreeHugger, Czech Out Another Alternating Tread Bookcase Stair