Bui Xuan Viet of southern Dong Nai Province has crisscrossed Vietnam to document sunrises, drawn to the contrast and colors that appear when night gives way to day.
For him, every photograph carries a story.
One such story began in Lao Chai Town, Lao Cai Province, in September 2019 (pictured).
The northern mountainous village was still remote and short of creature comforts, but a local family welcomed him with a meal and refused any payment despite his insistence.