"there is a small Restaurant called Petit Montmartre now"
The place has gone or never existed. This is an auto-generated note from MAPS.ME application: a user reports a POI that is visible on a map (which can be outdated), but cannot be found on the ground.
POI name: Bertal
POI types: amenity-fast_food
OSM data version: 2018-01-26T12:04:02Z
#mapsme

"Dieser Picknick Platz heisst Schattwäldli.
Es ist ein beliebter Kinderspielplatz. "
POI has no name
POI types: tourism-picnic_site
OSM data version: 2018-04-17T05:20:02Z
#mapsme

"Dieser Picknick Platz heisst Ewigstaffel"
POI has no name
POI types: tourism-picnic_site
OSM data version: 2018-04-17T05:20:02Z
#mapsme