An asian woman sipping coffee on an office rooftop.

We all know Americans work hard. Notorious for leaving waaay too much vacation time unaccounted for, it's incredible how many hours get worked, how much time is spent getting to work, and how little leisure time is left.

A new study done by financial advisor WalletHub divulges all of these numbers and more, proving how Americans work an average of 1,763 hours per year (which, by the way is around 25% more than those in Europe). And while we can certainly be impressed by the country as a whole, the results show that some cities are harder working than others, meaning that they're also more deserving of a vacation.

All of that said, here is the list of the top 20 hardest-working American cities. For the entire list, you can read the full study here or make use of the interactive map below.

Source: WalletHub