The Android & iOS offline map app CityMaps 2Go is free for the next 24h. The app covers Maps for all US and UK countries, France, Italy, Germany and many more countries. If your destination not available, just contact the Support and you'll get the map within a few days.
This is the right app for your next holidays because it works completely offline, you dont have to hassle with WiFi, Internet or even Roaming.
Hurry up because the promotion ends tomorrow.