Prospect Hill Cemetery, also known as the German Cemetery, is a historic German-American cemetery founded in 1858 and located at 2201 North Capitol Street in Washington, D.C. From 1886 to 1895, the Prospect Hill Cemetery board of directors battled a rival organization which illegally attempted to take title to the grounds and sell a portion of them as building lots. From 1886 to 1898, the cemetery also engaged in a struggle against the District of Columbia and the United States Congress, which wanted construct a major thoroughfare (North Capitol Street) through the center of the cemetery. This led to the passage of an Act of Congress, the declaration of a federal law to be unconstitutional, the passage of a second Act of Congress, a second major court battle, and the declaration by the courts that the city's eminent domain procedures were unconstitutional.