What to watch: Hidden Histories

This week Hidden Histories (Tuesday, November 10, BBC TWO Wales) reveals the quarry-surveying robots at the foot of Snowdon, how the fish traps of ancient coastal communities in Fishguard are revealing important discoveries about climate change, and an exploration into the work of architect Herbert North whose designs gave many buildings in Snowdonia a distinctive Welsh flare.

Hi-tech meets history as the most detailed survey ever undertaken into the historic Vivien quarry at the foot of Snowdon in north Wales is well underway. Using specially designed robots and laser scanning technology, they gain astonishing never-seen-before 3D views of the quarry.

Aerial photographs above Fishguard on the Pembrokeshire Coast reveal a hidden fishtrap which has been lost for over 60 years. Deena Groom from The Royal Commission looks into the dramatic changes to the sea level of the fishtrap, offering an astonishing glimpse into the impact of climate change on coastal archaeology around Wales today.

Herbert North was arguably the first to bring an individual Welsh style to architecture. Inspired by traditional architecture styles in north Wales and the arts and crafts movement, he spread his artistic flare on the houses and buildings across Snowdonia. His unconventional and often quirky approach is still evident in the designs of the houses and chapels across the landscape today, as architect Adam Voelker looks into his legacy and distinctive style.

Tuesday, November 10, BBC TWO Wales, 7.30pm