which president dedicated historical centerpieces 
President Ronald Reagan
Title: National Monument to the U.S. Constitution
Passage: The National Monument to the U.S. Constitution (also known as the Constitution Bicentennial Monument) is a monument commissioned of Australian artist Brett-Livingstone Strong by Warren E. Burger, Chairman of the Commission on the Bicentennial of the United States Constitution, to commemorate the 200th anniversary of the signing of the United States Constitution.  One of a pair created by Strong to commemorate historic anniversaries, along with The United States Presidency Monument, it was dedicated by President Ronald Reagan at Independence Hall in Philadelphia on September 17, 1987.  Both monuments are the property of the Global EventMakers,Inc., a Florida-based company with principal offices in Richmond, Virginia.  The monument has been transported for display at several public events around the country and was scheduled to begin a twenty-city traveling exhibit as part of the Spirit of Freedom Tour beginning in September 2009.  Due to poor economic conditions, The Tour never commenced; however the Monuments accompanying original replicas of the United States Constitution and Bill of Rights are being produced for placement in America's schools.  All rights to the Constitution Monument and the Original Replicas of the Constitution were transferred to The American Constitution Spirit Foundation, a Virginia non-profit, in March 2010.  The Foundation plans to find a permanent home for the monument during 2013.
Title: Independence Hall
Passage: Independence Hall is the building where both the United States Declaration of Independence and the United States Constitution were debated and adopted.  It is now the centerpiece of the Independence National Historical Park in Philadelphia, Pennsylvania.
Title: Washington's Headquarters (Valley Forge)
Passage: Washington's Headquarters at Valley Forge, also known as the Isaac Potts House, is a historic house that is one of the centerpieces of Valley Forge National Historical Park in southeastern Pennsylvania.  Probably built about 1773, General George Washington made his headquarters here during the encampment at Valley Forge of the Continental Army between December 1777 and June 1778.  The restored building is part of the Valley Forge National Historical Park and is open to the public.  It was designated a National Historic Landmark in 1972.
National Monument to the U.S. Constitution Independence Hall