The Science Museum in South Kensington houses one of the most comprehensive collections looking at the development of science and industry, and it is all done in a fun and creative way. This museum is one of the most interactive in the city, with lots of hands-on exhibits. In the high-tech Wellcome Wing, visitors can digitally alter their faces to look older or younger, and manipulate their voices. Some of the highlights include the Launch Pad gallery, which explains basic scientific principles, Puffing Billy, the oldest steam locomotive in the world and the actual Apollo 10 capsule.