Sisse Brimberg. Man Walking Arno River Levee.

Man walking along the levee on the Arno River, Florence, Italy.

Sisse Brimberg has produced and photographed more than 30 stories for National Geographic magazine over the past 40 years, covering a wide range of subjects, from the Hanseatic League and the Vikings to the global flower trade and the prehistoric cave art of southwestern France.

Follow Sisse on Instagram @sissebrimberg.