Barometer: How many ghost towns are there in Britain?

Lost property

The second-to-last surviving resident of St Kilda — a small archipelago 40 miles off the Outer Hebrides which was abandoned in 1930 — has died. There are more than 4,000 abandoned settlements in Britain:
Althorp Medieval village on the Althorp estate, Northamptonshire, removed by the Catesby family in the early 16th century to make way for sheep pasture
Imber Isolated village on Wiltshire downs which was evacuated and added to the adjoining military range in 1943 to train US troops.