Washington, D.C. Pentagon, large five-sided building in Arlington county, Virginia, near Washington, D.C., that serves as the headquarters of the U.S. Department of Defense, including all three military servicesâArmy, Navy, and Air Force.
Located in the J Star Cluster, the Quad Planetary System (the Quad) takes its name from the four inhabited bodies that comprise it: the dwarf planet Qresh and its three moons, Arkyn, Westerley, and Leith. These four worlds represent a politically, economically, and legally entwined planetary unit.
Facts About Mount Rushmore. 1  The four presidents carved in the mountain are George Washington, Thomas Jefferson, Theodore Roosevelt, and Abraham Lincoln. 2  Thomas Jefferson was originally started on George Washington's right. 3  However, after 18 months they realized that it was not working.acts About Mount Rushmore. 1  The four presidents carved in the mountain are George Washington, Thomas Jefferson, Theodore Roosevelt, and Abraham Lincoln. 2  Thomas Jefferson was originally started on George Washington's right. 3  However, after 18 months they realized that it was not working.