Argentina, Brasil, Costa Rica, EEUU, Canada, France, England, Germany, Moscu, Japan, Russia, South Africa, and all the countries that you can imagine in your head. All of them have hostels for lodging.
But the big question is how do you find out the names of the hostels in that city you are willing to go? Stop burning your minds looking for these hostels because in this site you have everything you need. Just let them know to which country yo are travelling and they will automatically show you the list of hostels in the selected city. Since travelling to a different country is a big deal, the site provides information and pictures of the different hostels available. Booking online is also possible so do not worry if you are having the feeling that you are going to end up sleeping in the streets. In hostels.com they solve all the problems and you will not regret having trusted this site. 
