In 1924, a truck sank into a hole in the ground, exposing a set of expertly constructed tunnels. A Smithsonian entomologist was the key to the mystery.
A 1912 photo of the Red Star Line ship SS Finland, which transported the U.S. Olympic team to the 1912 Summer Olympic Games in Stockholm. In the summer of 1915, Dr. Harrison Dyar and his purported mistress, Wellesca Pollock, a D.C. kindergarten teacher, and her sons traveled on the same ship from New York to San Francisco. Library of Congress