Preserved by the NT as the home of Sir Francis Drake. Originally the centre of a C13th Cistercian Monastery, it was reduced in size and became a house after Henry VII's expropriation. Hence the clearly visible 'shadows' where nave and Chancel were removed and presence of massive barn, but more like a large residence inside. It is not clear how authentic the internal restoration is, but certainly looks the part for C16th or C17th house, with slightly later but no less interesting kitchen. ( http://news.bbc.co.uk/local/devon/hi/people_and_places/history/newsid_8419000/8419016.stm
There is also an interesting collection of nauticalia from the time of Drake. This sited on the edge of Dartmoor, about 10 miles north of Plymouth, where legend has it he was playing bowls on The Hoe, which certainly commands a fine sea view, when the Spanish Armada was sighted in 1588