"This building is not accessible to the public to be used as a viewpoint"
The place has gone or never existed. A user of Organic Maps application has reported that the POI was visible on the map (see snapshot date below), but was not found on the ground.
OSM snapshot date: 2024-06-13T18:38:33Z
POI has no name
POI types: tourism-viewpoint
#organicmaps android

"This is a green house with tropical plants, free access to the public"
OSM snapshot date: 2024-06-13T18:38:33Z
POI has no name
POI types: building
#organicmaps android

Unable to answer "What’s the weight limit here?" – Dümmerstraße [K 271] (Tertiary Road) – osm.org/way/29342701 via StreetComplete 58.2:

My app won't uload a picture, but it's a "caution slippery sign", followed by a "maximum speed 20 sign"

"This is a small lifegaurd and first aid post"
OSM snapshot date: 2024-06-13T18:38:33Z
POI has no name
POI types: building
#organicmaps android

"there is a gate here. There are facilities a the beach (such as changing rooms, toilets etc.) but to enter you must pay an entrance fee."
OSM snapshot date: 2024-06-13T18:38:33Z
POI has no name
POI types: psurface-unpaved_bad highway-path
#organicmaps android

There's underground trash collection things for pmd, paper, green waste (vegetable/fruit etc) and, restwaste

via StreetComplete 25.1

This is not a path. It is blocked by a locked of staircase to a cellar.

via StreetComplete 21.2

This is not a book shop anymore, it will soon be a bike shop specialising in racing bikes

via StreetComplete 20.0

"This is not a park but a terrace with trees (think beergarten). The ground is completely paved and such"
POI has no name
POI types: leisure-park
OSM data version: 2020-05-14T01:25:26Z
#mapsme

Construction of this bridge is completed as of June 12, 2020

via StreetComplete 20.1