Millau Bridge in southern France ~ 'Le Viaduc de Millau' ~ cable-stayed bridge, crosses Valley of the River Tarn ~ "the tallest bridge in the world with one mast's summit at 343 m. ft) above the base. (and) the highest bridge deck in the world"
Pont des Arts Love Locks pedestrian bridge in Paris, walking distance from the Louvre. Write you and your loves name on the lock and throw the key in the river. Would love to do this some day when I go to Paris!