historic=monastery - building/place that is a historic monastery with traces of original use.
See also
amenity=monastery- an active monastery, canonry, hermitage or convent: a community of monks or nuns (or canons regulars, or a hermit, or priests, religious brothers or sisters) living under religious vowsbuilding=monastery- building constructed as a monastery building (usually you would find several specialized buildings andbuilding:part=*in a monastery, including places of worship, agricultural buildings, dormitory (dormitorium in christian monasteries), refectory for the eating hall, etc.