A battery-powered Studebaker subway bus in operation in one of the Capitol tunnels, ca. 1910.
For all D.C.'s aboveground hustle and bustle, much of the city's business is conducted underground. Rebecca Sheir and historian Paul Dickson visit the tunnels beneath the Library of Congress and chat about the role of tunnels in D.C.'s present and past -- from the LOC tunnels, to the network of tunnels/subways beneath the Capitol Building.
[Music: "Under My Sensi" by Thievery Corporation from The Outernational Sound]