If you have already decided to propose to your sweetheart, you just need to find the ideal place.
Of course you can choose a place that is closely related to your love story, making the most of the sweet memories you attached to it. On the other hand, you might go for a special place, one you are not so familiar with. You might prefer a stunning destination, to enhance the surprise effect for your future wife and make her enthralled by the whole situation.
As a professional engagement proposal photographer I experienced plenty of times that Venice works wonders to this purpose. Why?