3D laser scan of largest medival crane
Part of the Polish National Maritime Museum, the oh-so conspicuous Gda'nsk Crane (Zuraw) rises above the waterfront. Built in the mid-15th century as the biggest double-towered gate on the shoreline, it also served to shift heavy cargo directly onto vessels docked at the quay. Incredibly, this people-powered device could hoist loads of up to 2000kg, making it the largest crane in medieval Europe. Early-17th-century wheels were added higher up for installing masts.