The article says this style of railway is unique to Germany. I'd say it is also unique in Germany -- as far as I know, there is no other place that has it.
It is less than 100km from Wuppertal...
Full ride: https://www.youtube.com/watch?v=YQbFTxpnGZY
Ride & walk through Enoshima: https://www.youtube.com/watch?v=mFLpEvRvjZc
We rode it back in 2017 and it's really an interesting experience & as far as I can tell the only top rail monorail with tunnels. :)
Also as mentioned already, this is not a tourist gimmick - while Enoshima is indeed very nice and a popular tourist destination - it is evident most of the people on board are locals using it for commuting and generally moving around. And it seems to be very good at it, running over an often steep ridge & over roads, it provides fast and convenient transportation without wasting space.
Also due to using rubber wheels instead of the steel wheels the Schwebebahn uses it can (and does!) negotiate much steeper gradient present on the route.
A+++, would ride again. ;-)
https://en.wikipedia.org/wiki/Chiba_Urban_Monorail
Pro tip: JR trains from Narita Airport to central Tokyo pass through Chiba station, so you can hop off and go for a suspended monorail ride!
More info: https://en.wikipedia.org/wiki/H-Bahn
Also I just learned that the same model is being used at the Düsseldorf airport
Not sure how the monorails in Japan or in Memphis relate to the Wuppertal construction.