Hello from the U.S. Husband and I are planning to visit UK next summer, traveling mostly by train. I especially want to visit Agatha Christie's home at Greenways and thought of staying in one of the towns where we could catch the ferry to Greenways. But also, once having done that, we thought of renting a car for a couple of days and visiting some places in Cornwall and Devon. Could someone advise on the best base for visiting Greenways and the aera, and suggest some other places in the area we should not miss? We like history, WWII, Sherlock Holmes, Fawlty Towers..... Have been in the area before, but not since 1971!