Given the question: Pick one category for the following text. The options are - company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work. Arlington House The Robert E. Lee Memorial - Arlington House The Robert E. Lee Memorial formerly named the Custis-Lee Mansion is a Greek revival style mansion located in Arlington Virginia USA that was once the home of Confederate General Robert E. Lee. It overlooks the Potomac River and the National Mall in Washington D.C. During the American Civil War the grounds of the mansion were selected as the site of Arlington National Cemetery in part to ensure that Lee would never again be able to return to his home.
The answer is:
Building