A look at the decommissioning of the Trawsfynydd nuclear power station, the lost settlements of Skomer Island and the search for the wreck of a Bristol Channel pilot cutter. Show more

Eddie Butler and Heledd Fychan find out if the Gwent Levels flood of 1607 was a tsunami, and if the chain bridge at Llangollen is the oldest of its kind in the world. Show more

Eddie learns to play handball at Nelson's unique handball court - the only one in the UK. Does the Norman town of Grosmont have the oldest church roof in Wales? Show more

The remarkable story of a 19th-century cursing well, the secrets of a showcase mine, rock art on Anglesey as it's never been seen before, and visiting Brynmawr Welfare Park. Show more

Few people know the Pembrokeshire path as well as Brian John. Carn Ingli is the setting for his novels about a young woman's life in 19th century Pembrokeshire. Show more

Six stories from Cadair Idris, about those who live in its shadow. Alun and Owen Evans have a farm, but their income comes mainly from tourists, not the livestock.

Huw Edwards narrates a look at Stonehenge's link to the Preseli Hills, Swansea's medieval beginnings and bomb-damaged streets, plus the secrets of the highest house in Wales. Show more

A look at how laser scanning helped uncover the history of a quarry in North Wales, the rediscovery of a medieval fish trap in Fishguard harbour and a visit to Llanfairfechan. Show more

Discovering what may be a Roman villa in Mid Wales, uncovering the hidden secrets of a Renaissance ceiling at St David's Cathedral, and preservation of a major sculpture. Show more

Welsh history series narrated by Huw Edwards. A look at the house that time forgot near Raglan, and a visit to the World War I training trenches at Penally in Pembrokeshire. Show more

Series investigating Welsh history narrated by Huw Edwards, featuring a look at the legacy of a Tudor lord who wanted to turn Denbigh into the capital of North Wales. Show more

Documentary series. Huw Edwards and his team discover a lost church, search for the oldest castle gate in Europe and learn how the highest aqueduct in the UK was built. Show more

Documentary series. Huw Edwards and his team decipher the writing on a stone pillar, recreate what an iron age fort would have looked like and uncover an 18th century copper works. Show more

A series looking at the historical monuments of Wales. This time, Huw Edwards and his team examine a Tudor house, a Roman theatre and a chapel. Show more

A series looking at the historical monuments of Wales. Huw Edwards and his team interpret the strange humps and bumps in the Welsh uplands. Show more

A series looking at the historical monuments of Wales. Huw Edwards investigates the case of the disappearing house near Holyhead and searches for a lost castle at Portmeirion. Show more

Battling against the clock to build a bigger boat for summer tourists to Bardsey Island, Colin Evans has to maintain his daily life as a fisherman. Show more