There's meanwhile a draft in ID editor :
brand=Harley-Davidson

deprecated tag node/358802485/history, see osm.wiki/Tag%3Anatural%3Dcrater

Der hat Öffnungszeiten ? node/8553620797/history

Which parameters for museum and subject ?

"showcasing information about the Solar System, cosmology, and spaceflight" as of https://en.wikipedia.org/wiki/Hong_Kong_Space_Museum

https://taginfo.openstreetmap.org/search?q=spaceflight#values
https://taginfo.openstreetmap.org/search?q=astronomy#values
https://taginfo.openstreetmap.org/search?q=aerospace#values

Probably multiple ? osm.wiki/Semi-colon_value_separator
"space" may be misinterpreted https://taginfo.openstreetmap.org/search?q=space#values
"science" values should correlate with "faculty" https://taginfo.openstreetmap.org/keys/faculty#values

A "campus" should be a relation https://taginfo.openstreetmap.org/tags/campus=Frenchay

osm.wiki/Key%3Acampus

Is this a tethered balloon at the edge of the station ? node/7161118322 >>> balloon:launch=monitoring

Wo ist das genau ? https://neura-robotics.com/neura-electronics/

Is this Partida Lomas, 36, 29120, Málaga ? https://www.toroadventure.com/contact-us/

car or motorcycle ?