Many duplicated ways here, representing the rooms, but on the same level.

Per il mapping di corridoi si usa higway=corridor.
Per tutte le informazioni necessarie: osm.wiki/Indoor_Mapping

100 Montaditos (OSM data version: 2016-06-20T05:57:02Z) #mapsme

this parking is not free and public (note created by the app "free parking")

"Only exit"
POI has no name
POI types: entrance
OSM data version: 2018-07-05T18:22:02Z
#mapsme

"Only exit"
POI has no name
POI types: man_made-surveillance
OSM data version: 2018-07-05T18:22:02Z
#mapsme

The gate is usually closed

"Very tasty pizza"
POI name: Li Rioni
POI types: amenity-cafe
OSM data version: 2018-07-05T18:22:02Z
#mapsme

opening hours unclear - "survey" indicated closed state, sign said open every day (?)

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 This is an auto-generated note from MAPS.ME application: a user reports a POI that is visible on a map (which can be outdated), but cannot be found on the ground. User comments: "Another location" (OSM data version: 2016-12-14T16:41:03Z) #mapsme