Tresor is not only Ljubljana's largest hostel with 132 beds in 28 rooms, but it is also one of the best equipped and attractive budget accommodation options in the city. It's hard not to be impressed with the huge well-furnished rooms, ample bathroom facilities, two large common rooms, and a perfect location right in the city centre. It's also already earned top marks from guests on the most popular hostel booking sites, as well as an award for cleanliness. All this starting at €14 per night with breakfast, linens and towels included.