- Original release
- Previous episode S03E03 - Statue of Liberty Secrets
- Number S03E04
- Country United States
- Original language English
- Genre Documentary
-
External links
TheTVDB page
IMDB page
TheMovieDB page -
Last update
5 novembre 2025 - 12:15
on 11 databases
Fortress of Sound
Experts reveal how concert halls of the future could be constructed.
Next episode
S03E05 - Secrets of Stonehenge
