A veritable oasis in the busy city-centre district, this buzzing hostel occupies a palatial 19th-century mansion. There are various sleeping options ranging from mixed 14-person dorms to doubles with en suite bathrooms, and excellent facilities, including a cafe-bar, fully-equipped kitchen and rooftop deck with a small pool. Breakfast, not included in most rates, is available for €3.50.
You can organise tons of activities here and meet plenty of multilingual fellow travellers in an atmosphere that's sociable but never over-the-top noisy.