From Norman to Victorian times, explore the strange forts, mines, caves, rivers and much more, all previously hidden from our eyes. From Liverpool’s extraordinary Williamson tunnels to disused passages under the Thames, see a side of the past rarely mentioned in the history books!
| Title | Hidden History |
|---|---|
| Genres | Documentary |
| Release Date | |
| Episode Runtime | 00 Hours 47 Minutes |
| Season Number | 1 |
| Episode Number | 1 |
| Production Companies |
