Comment by ProllyInfamous

At 5m39s of https://en.wikipedia.org/wiki/File:1900_-_The_Paris_Expositi... is a higher quality view of the walkway (plus thirty minutes of other sights to behold from that World's Fair).

7m20s of the same video clip features a clip shot of riders on the overhead converyor/walkway.

[the original film was silent, audio is faked]