Wrote this quick guide after realizing its not so easy to find how to do this.

Visible features

The easiest way to find more details about any feature that is visible on the map is to use the Query features tool. Use to to query the map features at any point to find the object you are looking for.

Alternatively, you can also use the search box and directly search by the name of the feature for matching results worldwide.

Deleted features

Deleted features that you know were visible in the past is slightly more tricky. You can use this Overpass Turbo Attic query to query all features in the map view at any given historic date to find the object you are looking for.

Tip:

1. The date you set must be one when the feature existed on the map, between the date of creation and deletion. Use whodidit to find the date of all changes in any map area.
2. The overpass query gives all objects in the map view. Use the query filters to narrow down your search to only certain tags or types of geometries.