The World reveals the international nature of Inauguration Day. It represents the variation in call activity among US States and foreign countries as flows of people traveling to Washington, D.C. to celebrate President Obama, and then departing the capital to go back home. The event is truly international with people present from 138 countries, totaling over half of all the countries in the world. Among the foreign countries, the main international callers are from Canada, Great Britain, France, and Puerto Rico, which register a five-fold increase in call activity. In the U.S., the top calling states are also the country's most populous: California, Florida, New York, and Texas. Notably, Georgia also figures in the list of top five callers on Inauguration Day, even though it ranks ninth in U.S. population.