The District is located on the north bank of the Potomac River and is bordered by the states of Virginia to the southwest and Maryland to the other sides. The city has a residentpopulation of 601,723 according the 2010 United States Census found that the District, continuing a trend of population growth in the city since the 2000 Census, which recorded 572,059 residents.
EconomyWashington has a growing, diversified economy with an increasing percentage of professional and business service jobs.
The District has growing industries not directly related to government, especiallyin the areas of education, finance, public policy, and scientific research. Georgetown University, George Washington University, Washington Hospital Center, Children's National Medical Center andHoward University are the top five non-government-related employers in the city as of 2009.
An important contribution to the economy of Washington D.C is the tourism, for her varied famous places.Famous Places
White House: The White House is an architectural symbol of the power of the presidency and one of most compelling sights to see, designed by Irish architect James Hoban.
Lincoln Memorial:This memorial was dedicated in 1922 to honor President Abraham Lincoln. Thirty-eight Grecian columns surround a statue of Lincoln seated on a ten-foot high marble base. It was designed by RobertMills, an architect of the 1840s.
The Washington Monument: The Washington Monument is an obelisk near the west end of the National Mall in Washington, D.C., built to commemorate the first U.S. president,General George Washington. The monument is both the world's tallest stone structure and the world's tallest obelisk.
Jefferson Memorial: The Thomas Jefferson Memorial, modeled after the Pantheon ofRome, is America's foremost memorial to the third president. As an original adaptation of neoclassical architecture, it is a key landmark in the monumental core of Washington, DC.