The White House is the official residence of the President of the United States and is located in Washington, D.C. It is a symbol of the American government and has many features, including a PORTICO and a LAWN. The PORTICO is a porch-like structure with a roof supported by columns, which is located at the entrance of the White House. The LAWN is a grassy area surrounding the building. Both the PORTICO and the LAWN are iconic features of the White House.