14/25 Michael Portillo discovers the Victorian coal heritage of Cardiff.
4/15 Celebrity chef Ainsley Harriott goes back to Blackpool to recreate his holiday from 1974.
16/20 Michael helps to repair the ancient peat landscape of the Peak District.
13/25 Michael Portillo discovers Britain's hidden micro-mines within the Forest of Dean.
3/15 Presenter Chris Hollins goes back to Oxford to reminisce about his holiday from 1988.
1/3 Barra Best discovers County Down's version of Stonehenge and spends a day at the races.
15/20 Michael searches for the church of St Piran and harvests oysters on the Helford River.
14/20 Michael visits the largest clay mine in the world and goes pilchard fishing.
12/25 Michael Portillo visits the home in Hartlebury of Queen Victoria's favourite bishop.
2/15 Broadcaster Esther Rantzen visits the Isle of Wight to relive her 1946 holiday.