In a Prince's Footsteps; The Photographs of Francis Bedford, 1862

Fascinating BBC Radio 4 programme, with John McCarthy (IPlayer)

For Greece (Athens, Acropolis), start at 45.40 mark. For Cephalonia and 1953 earthquake, start at 50.00 mark

Gallery of Francis Bedford photographs mentioned

More images here, Royal Collection Trust, including Athens (programme photo 19) and Argostoli , Cephalonia/Kefalonia (programme photo 20).