It started somewhere in Italy, and today similar romantic displays can be found in many cities in Europe. In the time-honoured tradition of engraving your lover's name on a tree trunk, friends and lovers in Cologne Germany, are engraving their adoration for one another on locks which are then added to this growing collection.
In fact, these installations are becoming so popular that they are now attracting tourists who delight in reading the many personal love notes on the assembled locks.
The locks are a beautiful symbol of the way in which love binds us to one another.
Perhaps it's time to start just such a display on a grid near you...
Photo by stefan