When you travel around the world, you probably aim to be respectful of each and every culture you encounter. But you'd be surprised how easy it is to be rude without knowing.

Street food is one of the best ways to experience a country's culture. While these makeshift stalls might look risky, street food is often just as safe -- if not safer -- than restaurants. Ask any experienced adventurer. Still, there are a few basic rules you should know to avoid any problems.

Duolingo is one of the best free ways to get started learning a new language, and they're finally answering the pleas of wannabe polyglots everywhere by adding Japanese to their curriculum. Sugoi!