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.

The National Constitution Center is a nonprofit, nonpartisan institution devoted to explaining the United States Constitution.

Located on Independence Mall in Philadelphia, Pennsylvania, the center serves as an interactive museum and a national town hall for constitutional dialogue, regularly hosting government leaders, journalists, scholars, and celebrities for public discussions, including presidential debates.

The center houses the Annenberg Center for Education and Outreach, which offers civic learning resources both onsite and online.

It does not contain the original Constitution, which is stored at the National Archives Building in Washington, D.C.

The Liberty Bell is an iconic symbol of American independence, located in Philadelphia, Pennsylvania.

Formerly placed in the steeple of the Pennsylvania State House (now renamed Independence Hall), the bell today is located in the Liberty Bell Center in Independence National Historical Park.

The bell was commissioned in 1752 by the Pennsylvania Provincial Assembly from the London firm of Lester and Pack (now Whitechapel Bell Foundry), and was cast with the lettering "Proclaim LIBERTY Throughout all the Land unto all the Inhabitants Thereof," a Biblical reference from the Book of Leviticus (25:10).

The bell first cracked when rung after its arrival in Philadelphia, and was twice recast by local workmen John Pass and John Stow, whose last names appear on the bell.

In its early years the bell was used to summon lawmakers to legislative sessions and to alert citizens about public meetings and proclamations.

The United States Constitution is the supreme law of the United States of America.

The Constitution, originally comprising seven articles, delineates the national frame of government.

Its first three articles entrench the doctrine of the separation of powers, whereby the federal government is divided into three branches: the legislative, consisting of the bicameral Congress; the executive, consisting of the President; and the judicial, consisting of the Supreme Court and other federal courts.

Articles Four, Five and Six entrench concepts of federalism, describing the rights and responsibilities of state governments and of the states in relationship to the federal government.

Article Seven establishes the procedure subsequently used by the thirteen States to ratify it.

Philadelphia is the largest city in the Commonwealth of Pennsylvania and the fifth-most populous city in the United States, with an estimated population of 1,567,442 and more than 6 million in the seventh-largest metropolitan statistical area.

Philadelphia is the economic and cultural anchor of the Delaware Valleya region located in the Northeastern United States at the confluence of the Delaware and Schuylkill rivers with 7.2 million people residing in the eighth-largest combined statistical area in the United States.