Secrets of the Railways - Season 1 - Eps 2: Dark Side of the Mountain
The Harz Mountain Railway in Germany - Europe's longest rail network - which still uses steam locomotives and has a hidden past.
About Secrets of the Railways

Title: Secrets of the Railways
First Air Date: 2019-06-18
Last Air Date: 2019-07-23
Status: Returning Series
Rating: 0/10 (from 0 votes)
Language: EN
Seasons: 1
Total Episodes: 6
Network: U&Yesterday
Genres: Documentary
Production Companies: Unknown
Synopsis
These are the Secrets of the Railways, railroads constructed during turbulent periods and associated with mankind's ugliest deeds.