Inquisitive kids and adults alike can roam for hours at the Museum of Science and Technology, which has exhibits and activities intended to entertain and educate - and they do. This huge house of learning covers about 18,000sq m (60,000sq ft). Sweden's oldest steam engine, built in 1832, dominates the large Machine Hall, where aeroplanes - including one of Sweden's first commercial aircraft from 1924 - hang from the ceiling above bicycles, engines and cars. You can also take a break in the cafeteria and pick up a Star Trek uniform in the gift shop on your way out. Cino 4 (Sweden's only 4-D movie theatre) has daily shows in English.