The Heinz NixDorf museum in Paderborn, Germany. It's mostly computer science and engineering but it has a numerical background The collection is amazing, from

The Heinz NixDorf museum in Paderborn, Germany. It's mostly computer science and engineering but it has a numerical background The collection is amazing, from prehistoric cuneiform tablets over Renaissance mechanical computers, Enigma, vacuum tube compuers to modern machines - it is arranged in chronological order. Some of the items have replicas that you can actually touch and operate (e.g. brass multiplication machines from the 18th century).