Minster Lovell Hall & Dovecote, Oxfordshire

English Heritage.
Minster Lovell Hall is, or was, a 15th century riverside manor house. The ruins of a fine hall and corner tower can be seen, also a complete dovecote.
The ruins are quite interesting and worth a look if you are passing that way. The setting is pleasant and peaceful.
I found that finding the Hall was more troublesome than it should have been, because of vague or absent signage. First find the village, then find the church. Park up and look behind the church. The signs directing you to the dovecote are also rather vague, but if you look for a circular building with a pointy roof, you should be able to spot it in the middle distance.