https://m.youtube.com/watch?v=NoMnKbVDMu8
https://m.youtube.com/watch?v=PgZjq454e_k
https://youtu.be/nXfp3Ef5SPQ
1901- the first section of the Wuppertal Schwebebahn suspension railway in Germany opens to the public.
https://youtu.be/PykipkwcOIU
https://youtu.be/p9jWxwpXMPM
https://youtu.be/g1yMTN5wMs8
https://youtu.be/ge1w1c2_8kg
https://youtu.be/97EzJM260-M
https://youtu.be/3Qn7_mljjTg