Rappel!
                · à côté de 
                is a compound preposition: don't forget to include the 'à' and 
                    the 'de'.
                · when followed 
                by a masculine or plural article, 'de' will contract into 'du' 
                    (de + le) or 'des' (de + les):
              
                
                  | L'Ontario est à côté du Québec. 
                       Ontario is next to Quebec.
 Le Panthéon est à côté des Jardins 
                      du Luxembourg.  
                        The Patheon is next to the Luxemburg Gardens.
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