Yesterday, I introduced you to Metro’s eleven types of station architecture. Now, you can watch the designs as they appeared with the growth of Metro in this animated GIF.
In 1976, Metro opened with just two architectural types, the Waffle for underground stations and Gull I for aboveground ones. Today, it’s grown to eleven basic styles and six unique designs.
In some cases, expansion brought many stations of the same type, like the 1984 extension of the Red Line from Van Ness to Grosvenor which added four new Arch I stations. But in other cases, the types were somewhat mixed, such as the 1991 tunnel for the Yellow and later Green Line from Gallery Place to U Street.
To learn more about these styles, see the original post.