Constant barking can be a deal-breaker when choosing a dog, especially if you have close neighbors or live in an apartment. Luckily, some breeds are naturally more reserved. We're counting down 10 of the quietest dog breeds that make amazing companions, from the famously 'barkless' Basenji to surprisingly chill giants like the Great Dane, proving you don't have to sacrifice a great personality for a little peace and quiet.