We went to Zurich and I realised that I hadn't bought a travel guide! Furthermore, we had no internet on the go. I was sure that this trip would be a disaster. And then, a friend of mine told me about this application. It was fabulous! We downloaded it very easily. There was no need for internet. Suddenly, Zurich became an open escape roon.We started wandering around the city, trying to solve the puzzles! Especially the quiz about Ganymedes made me laughing! Thank you for this memorable experience! I plan to go to London. Is there an application for London too?