Situated on a hill near Boudhanath, Kopan specializes in Tibetan Buddhism. The monastery has superb 180 degree views of Kathmandu. Retreats and meditation courses are offered, but it also makes a good day trip if you aren't ready or able to commit yourself to a multi-day course. It's a serene spot where Buddhist monks go about their day-to-day business. There's a gift shop/restaurant and library. If you have an interest in Buddhism, the monastery is worth a visit.