In the heart of downtown Mexico City, just behind the Catedral Metropolitana, this large hostel provides sunny, clean, and comfortable rooms at rock-bottom prices. The café in the entryway, which serves inexpensive pastas, sandwiches, and salads, is a great place to swap stories with fellow travelers (mostly young vacationers on a budget). The kitchen, terrace, and TV room are also natural places to strike up a conversation. If you're on a tight budget, ask about the shared rooms. Also be sure to ask about tours and weekly excursions available through the hostel.