For more than 150 years, scientists have debated whether Prototaxites—which stood roughly 24 feet tall and 3 feet wide—were an early lichen or fungus, like a “giant mushroom”
The solitary fish named Mambo stopped eating and seemed to be missing its human visitors—so aquarists attached photos of human faces and uniforms to the side of its enclosure
After spending centuries on a British aristocrat's estate in North Yorkshire, the marble masterpiece will be unveiled in Chicago's Wrightwood 659 gallery later this week
Alaska is nicknamed "The Great Land," and for good reason: it is wild, rugged and expansive. In a series of articles, Smithsonian magazine explores the history, culture and natural wonders of the 49th state.
A new book spotlights Frances Perkins' efforts to challenge the United States' restrictive immigration policies as President Franklin D. Roosevelt's secretary of labor