In Washington, D.C., the cornerstone of the United States Executive Mansion (known as the White House since 1818) is laid.

The White House is the official residence and workplace of the president of the United States. Located at 1600 Pennsylvania Avenue NW in Washington, D.C., it has served as the residence of every U.S. president since John Adams in 1800 when the national capital was moved from Philadelphia. The White House is also a metonym for the Executive Office of the President.

White House north and south sides
White House north and south sides (Source: Wikimedia Commons)
Aerial view of the White House
Aerial view of the White House (Source: Wikimedia Commons)
CharlestonCountyCourthouse(cropped) HABS361451pv
CharlestonCountyCourthouse(cropped) HABS361451pv (Source: Wikimedia Commons)
HobanWHProgressDrawing
HobanWHProgressDrawing (Source: Wikimedia Commons)

Watch: The White House Construction - In Color (1792-1829)

From the Thomas Relives History channel.

Sources and further reading: Wikipedia — White House (CC BY-SA). Images: Wikimedia Commons.