The Rahmi M. Koç Museum fills an eighteenth-century anchor foundry, the Lengerhane, where chains and anchors were once forged for the Ottoman fleet. Turkey's first major museum devoted to transport, industry and communication, it was assembled from the private collection of one industrialist and opened in the 1990s. The stone halls, thick-walled and cool, now hold steam engines, vintage cars, model railways, aircraft and rooms recreating old workshops and ship bridges. A second wing occupies a nineteenth-century dockyard across the lane, and the collection spills outdoors onto the Golden Horn shore.
You wander from a full-size Douglas DC-3 to a decommissioned submarine moored at the quay, ducking through its narrow hatches and past its torpedo tubes. Children turn cranks and press buttons; adults linger over a restored steam locomotive or a lavish railway saloon carriage. The waterfront air carries the smell of the Golden Horn, and a period French café keeps one corner of the site. Today it remains one of Istanbul's most hands-on museums, less about looking than about climbing aboard the machines that moved the modern world.