#OnThisDay 1962: Fyfe Robertson delivered a customarily fascinating report on the construction of the Clyde Tunnel. | BBC Archive

Beneath this ancient stronghold lies a hidden tunnel system that hasn’t been opened in centuries.�What began as a routine exploration turned into one of the most intense discoveries we’ve made in Italy. While filming inside the lower floors, we noticed a strange stone cavity concealed behind debris. After clearing it out, we realized it was the beginning of a secret passage that plunges deep under the castle. These tunnels were likely built during the castle’s most violent centuries, serving as