"Permanently Closed"
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: 2025-04-18T15:38:17Z
POI name: Christa Kupfer
POI types: amenity-nightclub
#organicmaps android

Unable to answer "Do you need to pay to enter here?" – Die Möglichkeit einer Insel (Art Gallery) – node/12330602407 via StreetComplete 60.3:

I don't see it

Mittlerweile ist der Uferweg ungefähr bis zu dieser Stelle offen.

Hier gibt es eine neue Bar (?) namens "OF EDEN":
https://www.mapillary.com/app/?pKey=4044704932455966&focus=photo

Unable to answer "What type of bicycle parking is this?" – Bicycle Parking – node/12531860869 via StreetComplete 61.2:

Nicht einsrhbar

"Duplicate of osm.org/go/0MbE35TI-?m. Furthermore, this place is not shown on OsmAnd."
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: 2025-05-11T16:17:16Z
POI name: LARK
POI types: amenity-events_venue
#organicmaps android

"This belongs in a category of its own: Drama School, just like music schools have their own category."
OSM snapshot date: 2025-06-22T05:04:15Z
POI name: ETI Schauspielschule
POI types: amenity-college
#CoMaps android

Interimscampus Humanistische Hochschule Berlin AdöR