March 20 is the International Day of Happiness, which recognizes "happiness and well-being as universal goals and aspirations in the lives of human beings around the world," according to the United Nations. Take a look at this year's list of the happiest countries in the world.
What makes people happy? The answer is a combination of things, according tothe World Happiness Report compiled by Columbia University's Earth Institute. Take a look at the happiest countries in the world.
4. The Netherlands
1. Denmark. Considered the happiest place in the world for the second year in a row, Denmark is home to Tivoli Gardens, one of the world's oldest amusement parks.
Click here to read about the world's friendliest nations.
The search for missing University of Virginia student Hannah Graham now includes the use of an aerial drone -- the first time, according to authorities, one has been used in the search for a missing person in the state.
Photos taken by scientists working for the National Oceanic and Atmospheric Administration show more than 35,000 walruses gathered, or hauled out, on a beach near the village of Point Lay, on the Chukchi Sea in northwest Alaska on Saturday.