"no letterbox to be found here, even after speaking to staff inside the building"
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: 2025-02-27T10:33:49Z
POI has no name
POI types: amenity-post_box
#organicmaps android

"Height restriction of 2.2 metres and signs stating that camping is prohibited "
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: 2024-02-02T13:20:04Z
POI name: Parking Platja
POI types: tourism-caravan_site
#organicmaps android

"Monastery Agnountos (en)
Ιερά Μονή Κοιμήσεως της Θεοτόκου Αγνούντος (gr)
Kloster Agnúndos (de)"
OSM snapshot date: 2025-12-14T02:16:23Z
POI has no name
POI types: building amenity-place_of_worship-christian
#organicmaps android 2025.12.16-16-FDroid

"There's BricoCasa Mazara DIY store now"
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: 2025-12-14T02:16:23Z
POI name: Lidl
POI types: building shop-supermarket
#organicmaps android 2025.12.16-16-FDroid

"Għar Lapsi Reverse Osmosis Plant"
OSM snapshot date: 2025-11-23T18:39:39Z
POI has no name
POI types: building
#organicmaps android 2025.11.26-5-FDroid

"Not in use anymore, instead there's a shuttle bus"
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: 2025-11-09T01:21:36Z
POI name: Pantalica ovest
POI types: amenity-parking-lane
#organicmaps android 2025.11.11-5-FDroid

"Not in use anymore, but there's a shuttle (I did map the fermata)"
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: 2025-11-09T01:21:36Z
POI name: Parcheggio Sella di Filipporto
POI types: amenity-parking
#organicmaps android 2025.11.11-5-FDroid

"https://it.wikipedia.org/wiki/Ipogeo_di_Torre_Pinta"
OSM snapshot date: 2025-10-21T03:35:21Z
POI name: Torre Pinta
POI types: building historic-ruins
#organicmaps android 2025.10.23-22-FDroid

"Isn't there (anymore)"
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: 2025-10-04T01:14:47Z
POI has no name
POI types: amenity-post_box
#organicmaps android 2025.10.05-7-FDroid

"kostenpflichtiger Stellplatz"
OSM snapshot date: 2025-10-04T01:14:47Z
POI name: Area Camper Olimpiadi Centro Sportivo
POI types: tourism-caravan_site internet_access-wlan
#organicmaps android 2025.10.05-7-FDroid