The entry is 7 years old, is it still correct ? On the website the address is given as the building on the opposite side of the street https://www.interior.gob.es/opencms/es/contacta-con-nosotros. If still the case, you could add https://taginfo.openstreetmap.org/tags/government=ministry

Many buildings within way/30648317 are also tagged as amenity=university which should only be building=university, probably with osm.wiki/Key%3Afaculty

2008 discussion abandoned osm.wiki/Proposal:Model_Aerodrome, new namespace: aeroway=*#Models

2008 discussion abandoned osm.wiki/Proposal:Model_Aerodrome, new namespace: aeroway=*#Models

most likely a geological=volcanic_vent

Which type ? node/6350491514, see natural=crater

Sollte auffindbar sein node/8553679864/history

Sollte auffindbar sein node/8553679867/history

GEODSS observation station as of https://en.wikipedia.org/wiki/Maui_Space_Surveillance_Complex#Ground-based_Electro-Optical_Deep_Space_Surveillance_(GEODSS) --> https://taginfo.openstreetmap.org/keys/communication%253Aoptical ?

Wo ist das eigentliche Weingut ? osm.wiki/DE:Tag:craft%3Dwinery