Hi,
 
I need help in tagging a special kind of survey points: geodesic towers.
A new tag may help some.
 
These are tubular concrete structures, with usual steel triangulation tripods on their top.
They have the precise benchmark on the ground level, the tower is erected so that it's visible from far, being higher than the trees around.
They form the base of the national reference grid.
 
http://ballon.hu/wp-content/uploads/2017/12/2017-12-23-12.39.37.jpg
http://karpat-medence.hu/keptar/galleries/Magyarorszag/Fejer/Perkata/Geotorony/perkata-geotorony_02.jpg
 
They could be tagging as man_made=survey_point because their main purpose is being a geodesic reference point.
However, they could be a man_made=tower, for being a tower emerging from the surface - and to distinguish it from brackets, benchmarks or pavement rivets.
Furthermore, additional functions can be connected to the latter only:
Some of them are tourist attractions, like this viewpoint. It is a tower:type=observation.
If it's rigged with GSM and microwave antennae, it's tower:type=communication.
 
(And of course you may add the triangulation_point=yes tagging.)
 
So how would you tag them?
 
Greets,
Ákos
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