With around 100,000 artifacts in four different branches, the Deutsches Museum opened its doors in 1903, the brainchild of engineer Oskar von Miller. Its Munich home is now in a purpose-built hall on Museum Island, where about 30,000 exibits are on show over seven floors. Taking design and technology as its theme, the museum’s collection romps through physics, astronomy, chemistry, communications, decorative arts, and transport through the ages. Here learning is a treat: many of the displays are interactive and the Centre for New Technologies neatly captures the zeitgeist of the moment with working laboratories as well as presentations from environmental experts. There’s a planetarium with shows plotting the night skies, an observatory with telescopes to peer at the stars, plus a delightful children’s museum complete with hands-on interactive experiments, wave-making machines, fire engines, and a giant guitar to strum. The peerless collection of musical instruments ranges from primitive Bronze Age hunting horns to contemporary mixing desks – there are often concerts here during winter. Temporary exhibitions are found on the first floor, often featuring the designs of a particular era.