Washington, D.C., formally known as the District of Columbia, is the capital of the United States and houses all three branches of the US Federal Government.
Columbia, Maryland is a well planned big city and a census-designated place in the United States.
Baltimore is known for its beautiful harbor and eclectic neighborhoods.
Pittsburgh is known for its steel industry, which played a crucial role in the city's development.
New York City is the most populous city in the United States.
Durham is known for its technology companies and scholarly institutions.
Raleigh is known for its universities, including North Carolina State University.