Müstair is a small village in the Romansh-speaking part of Switzerland, just 1 km from the Italian border. The main (well, only) attraction is the impressive Convent of St. John, which consists of a small church and the main building, which is still an active monastery with a handful of nuns. The church itself can be visited free of charge. Only the convent itself, which includes a reasonably interesting exhibition, charges for admission. The medieval frescoes are very big and really beautiful, and certainly merit its inclusion on the WH list, since there are very few remains from this period, and even fewer in such a good condition. The historic value and scenic setting in a beautiful mountain landscape make this a worthwhile trip, even though Müstair is a bit out of the way. It can actually be quite easily reached by public transport from Zernez in Switzerland (passing through the scenic Swiss National Park) and from Mals in Italy (and from there over the Reschen Pass to Austria).