There are a total of 54 ethnic groups in Vietnam.
French photographer Réhahn has photographed 40 of them so far, and is planning to document all of them.
The portraits he’s captured provide a glimpse into the vanishing cultures of people who are striving to hold onto their heritage in a rapidly-changing world.
Keep scrolling to see breathtaking photos of some of Vietnam’s most remote tribes.
He explains the villages are often lost in the mountains, and there's no existing information -- in English or Vietnamese -- about how and where to find them.
Although he's originally from France, Réhahn currently lives with his family in Hội An, in central Vietnam.