if you're looking for a hostel where you can meet people there is only one place to go in Madrid & that's Cat's Hostel. They do however have many double/single bed hostels that you can stay in if you want more privacy. I stayed in one of those my first night, but I hated it because I didnt meet anyone. As for barcelona....I stayed in the HI hostel kind of out of the way but it was beautiful, not too full of people/crazy partiers & it was made out of like an old monestary or something. Really nice. Only thing is that when you come in past a certain time they only open the doors every half hour so you have to wait to get in. Kabul's a great party place...although I dont think you'll be getting much sleep there....
If you walk backwards, you'll find out that you can go forward and people won't know if you're coming or going.
Dream as if you'll live forever. Live as if you'll die today.
Countries I've Visited: Austria, Botswana, Canada, Costa Rica, Democratic Republic of the Congo, France, Germany, Greece, Hong Kong, Italy. Malawi, Mexico, Portugal, Rwanda, South Africa, Spain, Taiwan, Tanzania, Uganda, USA, UK, Vatican City, Zambia