Protestors on college campuses may see signs pointing them to "free speech zones." Those types of cordoned off areas, meant to contain students' political speech, will soon be illegal on Colorado campuses. Then, new evidence that ancestral Puebloans used sophisticated geometry to build the Sun Temple at Mesa Verde National Park. And, Denver poet Robert Cooperman draws on his childhood memories of his father's work at a local hat factory for his new collection, "City Hat Frame Factory." We also have a history of "The Denver," which was the main place to lunch and shop in town during much of the 20th Century.