In which building was the Declaration of Independence adopted, a landmark of America250?

The Declaration of Independence was adopted in Independence Hall, a landmark of America250.

In 1776, the building was known as the Pennsylvania State House. The Second Continental Congress met there in Philadelphia when it debated and adopted the Declaration of Independence. The building was later renamed Independence Hall because of its connection with the Declaration and the Constitution.

Independence Hall is part of Independence National Historical Park and is a UNESCO World Heritage Site. Its Assembly Room is associated with both the Declaration's adoption and the Constitutional Convention of 1787, which can make the two events easy to conflate.

The building was not originally designed as a national capitol. It served Pennsylvania's colonial and state government before becoming one of the best-known sites in the history of the United States. The Liberty Bell was also kept in the Pennsylvania State House, but it is a separate object from the building itself. The Declaration's engrossed parchment is now preserved elsewhere, at the National Archives Building in Washington, D.C.