Washington, D.C., is the capital of the United States, known for its political significance, historic monuments, museums, and as the seat of the federal government. Articles are a unique way for readers to learn about the world around them. In addition to building reading comprehension skills and increasing vocabulary, articles can be used for writing and research. Each U.S. city is broken into 6 single-page sections: Introduction, History, Landmarks, Food and Fun, Fun Facts, and Words to Know.