Retrieving records from table given id from another table

I want to retrieve all places where parent_place_id = 999 in the attractions table. What relationships would I set up and what would this query look like?

I've tried using the "Has Many Through" relationship, but I'm not sure if this applies, as my relationship is between two tables, not three.

I have a table places, with columns:

And a second table, attractions:

class Place extends Model
{
    public function attractions()
    {
        return $this->hasMany(Attraction::class, 'parent_place_id', 'place_id');
    }
}

class Attraction extends Model
{
    public function place()
    {
        return $this->belongsTo(Place::class, 'place_id', 'id');
    }
}

Then you can call it with a method like this:

$places = Place::whereRelation('attractions', 'parent_place_id', 999)->get();