Getty Images
Fleur de sel is a rare, unrefined salt that is made by evaporating seawater slowly in 2-centimeter-deep ponds. It's made in western France using centuries-old methods. Just locally, it can cost 230 times more than table salt. Outside French borders, it can reach $420 per kilogram.
Courtesy of SP80
Drew Angerer/Getty Images
Justin Sullivan/Getty Images
Courtesy of Amanda Rollins
Mohamad Salaheldin Abdelg Alsayed/Anadolu Agency via Getty Images
Courtesy of Sarah Bajc.
Willie B. Thomas/Getty Images