How do you identify an unfamiliar flag? If you're driving on Massachusetts Ave in DC, you hop out of your car and read the sign on the front of the embassy displaying it. Otherwise, you go to the Flag Detective, a directory ordered by general design, shape, and color.

I found this site after surfing through a few references in an article about a survey of flag geeks that stated that the flags of DC and Maryland are among the ten best of North America's states and provinces (and territories without proper congressional representation, but I digress). For our readers reader in Pennsylvania, the survey ranked its flag near the bottom, along with the many other states who feature the state seal on a blue background.