There’s a nifty little app that can be a great friend to travelers called Word Lens Translator. This free app for your Android or iPhone uses your phone’s camera to translate signs in other languages.
You can go from English to Russian, Spanish, French, Italian, German or Portuguese and Vice Versa. The app is not perfect, it works best on clear fonts. It does not recognize handwriting or highly stylized fonts, and like all translators, you aren’t guaranteed a perfect translation. But it can be very useful if you want to know what a sign says.