How to structure data in amazon dynamo db?

I want to store place information in dynamodb. The information is

id | place_name | district | state | country | latitude | longitude

And I want to search a place using name, district, state and country.

1. 
   

   Which all indexes should be created so that I can do this efficiently?

   
   


2. 
   

   Should I use a scan or a query operation?

   
   


3. 
   

   Can I query table to find a place near a give latitude and longitude?