My favorite thing about the DC metro are the micro-targeted ads. Obviously, there's all the defense contractor junk at Pentagon City, but I also remember one at Foggy Bottom that was like "so-and-so is on the payroll of ISIS and the State Department should BAN them."
I love the very-specific niche ads of the DC metro area. The #1 morning radio station in DC is WTOP and their ads are for attack helicopter programs instead of used Subarus. As in, "the Lockheed Grumman Supa-Attak 123XYZ is the proven program for warfighters in the C4ISR space <insert another 30 seconds of insider mumbo jumbo>". Certainly makes a change from car dealers and mattress stores.