According to the National Bureau of Economic Research, Dana McMahan splits time between two of the country's unhappiest cities. She set out to explore the causes of the happiness deficits.
Somewhere outside of Oslo, there are 1,000 newly planted spruce trees. One hundred years from now, if everything goes to plan, they'll be published together as 100 pieces of art.
Most of the some 200 ferries that operate in the United States serve a specific, essential purpose—but not the one that runs across the Tred Avon River.