Photo: GetYourGuideEXPERIMINTA is the hands-on science centre of Frankfurt, a hit with families for its hundreds of interactive exhibits exploring maths, physics and technology across several floors. Children and curious adults can happily lose a few hours pulling levers and running experiments. It sits in the Bockenheim district. Allow a good half-day if you are travelling with children, and check for the daily science shows that punctuate the exhibits.