Spectacular drone view of the famous Bridge on the River Kwai in Kanchanaburi, Thailand on an overcast day, revealing mountains in the distance through the foggy sky

spectacular drone bridge river kwai kanchanaburi thailand overcast mountains fog sky day water buildings people horizon railway asia scenic historical reflection city steel track roof structure metal railroad historic old architecture memorial history landmark tourism travel land grass hills boats rooftops homes bushes foliage brush walking structures stream outdoors