Not a Hotel

artwork
name: Πετούμενα
artist: Γιώργος Γιάννακας
height: 10
start_date: 2017
description: 3 flying birds, each on a pole

correct location of submarine memorial

node/4807339322 seems like a personal note, as do the rest of these:
changeset/47998747
The changeset must be reverted, as it has changed and deleted data of nodes

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 This is an auto-generated note from MAPS.ME application: a user reports a POI that is visible on a map (which can be outdated), but cannot be found on the ground. (OSM data version: 2017-01-19T15:17:02Z) #mapsme

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 This is an auto-generated note from MAPS.ME application: a user reports a POI that is visible on a map (which can be outdated), but cannot be found on the ground.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: "street" (OSM data version: 2016-06-20T05:57:02Z) #mapsme

new name: Κέντρο Υγείας Καλλιθέας
amenity doctors, not a clinic
check phone

gym station

leisure=fitness_station
fitness_station=horizontal_bar

sun shelter