How people could determine what time it was before the invention of the clock? And how they could determine what time it was at night? How captains were able to sail oceans without the use of radar and GPS? In which way the stars and the universe were investigated? With this tour we are going togive an answer to these questions and to other curiosities! Thanks to the intuition and the intelligence of two geniuses like Leonardo and Galileo, we will make a funny trip in science. We will see the reconstruction of the machines projected by Leonardo (and we will see how modern he was!) and we will see a magnificent collection of scientific instruments, that helped us to understend our world and the universe.