The longest bridge in the world, The Lake Pontchartrain Causeway, is a causeway composed of two parallel bridges crossing Lake Pontchartrain in southern Louisiana, United States. The longer of the two bridges is miles long. Going here during the summer!
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"