Modern Marvels

Lighthouses

Documentary

S7, E15: From the earliest known lighthouses, such as the Pharos of Alexandria, to modern-day automated buoys and solar-powered lantern rooms, lighthouse history is rich with ingenious optical discoveries.

Mar 19, 2001 · 46m

Information

Released
2001
Run Time
46 min
Rated
TV-G

Languages

Original Audio
English
Audio

English (United States) (AAC)

Subtitles

English (United States) (CC)

Accessibility

Closed captions (CC) refer to subtitles in the available language with the addition of relevant non-dialogue information.