Gorham's Cave

 This postcard was sent by Eric

Castle Stalker

 I bought this postcard at Edinburgh

Landguard Fort

 Landguard Fort is a fort at the mouth of the River Orwell outside Felixstowe, Suffolk, designed to guard the mouth of the river.

Jarlshof, Shetland

 This postcard was sent by Lindsay

St Kilda

This postcard was sent by Johnson

Durham Cathedral

 This postcard was sent by Mary

Dinorwig

 This postcard was sent by Adam