A wooden puzzle in the silhouette of a human head might look fun if the stakes weren't so high. A doctor named Howard Knox invented The Feature Profile Test — the formal name for this puzzle —after officials struggled to administer IQ tests to immigrants because of issues with language and literacy.
Stephen Lewis/Art + Commerce/Smithsonian Magazine
During the cruise ship season, tourists flood the streets of Ketchikan. The borough of Ketchikan is home to about 13,000 people. In just one day, Ketchikan may see 13,000 cruise ship visitors.
President Trump meets Saudi Arabia's Deputy Crown Prince Mohammed bin Salman in the Oval Office on March 14. Trump is traveling to the kingdom Friday on his first foreign trip.