Heat waves shimmered in the distance as we trudged up the side of a red sand dune in Namibia. Boyckey plodded along next to me in silence. It was hotter than usual—even for a Namibian. “What is it with tattoos?” he blurted out, gesturing to a European guy covered in...

Recent studies suggest that you can get a huge boost in happiness by increasing your thankfulness. Perfect timing as we’re coming up on the most thankful holiday of the year.  Last year, I sent around four days of photos I shot for stock of all the things I’m thankful...