“The DaVinci Code” taught us to look twice at Washington’s infrastructure, and indeed there is more than meets the eye. Plenty of secret and not-so-private meetings happen underground in tunnels and passageways connecting some of D.C.’s best-known buildings, and in recent years, the Obama administration has made more of the subterranean District less restricted. Then there are the better-advertised subterrestrial sites: caverns, public transportation access and even a shopping mall. Whether you’re looking to rub shoulders with members of Congress, admire centuries-old rock formations or just grab a bite to eat, here are nine — almost 10 — ways to see the region below street level.
http://redtri.com/dc/underground-hideaways-kids-love/
http://redtri.com/dc/underground-hideaways-kids-love/
