Worlds collide in Washington State, where sea meets forest, forest meets desert and snow-capped mountains tower above it all. Few states can offer such a varied list of natural attractions: gorges, waterfalls, caves, sand dunes, rain forests, live volcanoes, ocean beaches and mountain meadows. The "Evergreen State" truly lives up to its name.
Have you ever wondered how a simple shot can keep you from dying a horrible death? In this one-minute video, Ask Smithsonian’s host, Eric Schulze, unravels how vaccines boot-camp our bodies into shape, getting us ready to fight off deadly diseases