don khone-don det historic bridge at sunset,crossing the mekong river,4000 islands,southern laos

laos four islands bridge historic french colonial mekong river khon khone 4000 traversing travelers cyclist bicycles crossing railway architecture connecting remote rural det running waters sunset views viewpoint view reflections tropical riverside riverbank sunlight landmark lights hanging tree branches branch overhanging road phan waterways archipelago south island khone-don southern looking popular tourists cross foot bicycle relax sun sets