Roman Villa complex:

The plot below is of a recently discovered Roman villa.  A resistance survey over an area revealed the remains of a corridor villa.

Bourne Castle:

The image below was part of a 'Press Release' following a very clear resistance survey at Bourne Castle, Bourne, Lincolnshire.  The strong curving feature is believed to be part of a curtain wall and the square feature abutting it is believed to be a twelth century turret. There is evidence for other buildings close by.