In the middle there is some kind of kiosk, but closed and for sale. It's a rest area. The area along the highway=service around the property is designated as a public parking lot (fee=no), capacity=50, if densely parking.
Former name of this place seems to be Jussy Boules. Photo taken from the North East corner.

via StreetComplete 34.1

Attached photo(s):
https://westnordost.de/p/113396.jpg

Unable to answer "What kind of building is this?" for way/43972479 via StreetComplete 22.2:

Building = monastery
Oder vergleichbarer Tag

Tiefgarageneinfahrt
2,1m

via StreetComplete 50.1

toilet:wheelchair=limited

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Position von Kotter und Edeka eher hier.

via StreetComplete 50.1

Unable to answer "What’s the topic of this information board?" for node/10862499687 via StreetComplete 50.1:

Informationen zu Veranstaltungen in der Stadt. Sollte vielleicht eher als Werbetafel klassifiziert werden.

Unable to answer "Do these traffic lights have a button to request a walk signal?" for node/288827750 via StreetComplete 50.1:

Längs zur Hauptstraße nur Taster für Blinde. Quer zur Hauptstraße Drücker

Kein cutout in der Mitte, das ist Gras auf dem Dach.
Ergänzend: Architekturstil=brutalism
Müsste der Tag building:architecture_style oder so sein.

via StreetComplete 50.1

Kirchturm fehlt.

via StreetComplete 50.1