I believe the guest house should be undeleted again, while the attraction is likely the "garden of oranges" and a duplicate

I agree for the attraction (although it seems that we might miss something there, as there is no attraction currently at this spot), but the B&B has good tags, including complete addressing and a name, so you should undelete it I believe. These are the tags: addr:housenumber 20
addr:street Via dell'Amba Aradam
internet_access wlan
name Laterano guest house
opening_hours 24/7
tourism guest_house

it would be nice to also add a name to this hostel.

this edit had added 2 duplicate nodes with tourism=attraction for the Colosseum, a feature that is already mapped in much greater detail. Please do not add duplicates to already mapped features.

this edit created a hotel in the middle of the road, please relocate to the actual position, thank you

si, è un problema in generale, si trovano cartelli e cippi vecchi in massa, e per l'utente è utile sapere sia quale versione è attuale, ma anche cosa può trovare lungo la strada, qui al centro abbiamo problemi simili. Per esempio il GRA di Roma in realtà si chiama A92, ma tutti i cartelli dicono GRA, lo stesso con certe strade regionali e statali

please be careful in your classification, these are likely not hotels but guest houses (judging from the name and internet research)

you might also consider to change the building tag from "yes" to "townhall" if the building was built as a townhall.

according to your comment, this is the townhall. I have added the tag amenity=townhall. If this is not correct, please let me know.

please do only write names in the the "name" tag and use other tags for localized information.

the shop that was entered in this changeset is not a supermarket but just a small convenience store. I have changed the tagging accordingly.

please create objects at the real location, not in the middle of the street.

please map the things at the actual spot, this restaurant is outside of a building. I have moved it now into the neareast building

you had created a duplicate with this edit, the object was already mapped in greater detail. Also, please refrain from CAPITALIZATION

please use changeset comments to describe your edits

this places the laundry in the middle of the street, please reposition at the correct location

this places the bakery in the middle of the street, please reposition

this edit has changed the name of a bus stop to a laundry, this is likely not what you had in mind. I have corrected it. Please be careful when contributing to OpenStreetMap, thank you.

this edit adds a housenumber to a whole building but in Italy every entrance gets its own housenumber.

just wanted to let you know I have moved your hotel inside the nearest building, please check if you can.