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.
Réhahn has been photographing the people of Vietnam's tribes for the past five years.
Although he's originally from France, Réhahn currently lives with his family in Hội An, in central Vietnam.
He refers to this project — the Precious Heritage Collection — as his most significant.
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