ABC News anchor David Muir recently visited a vault that houses significant American founding documents, including a draft of the U.S. Constitution. The visit highlighted the historical significance of these artifacts, especially in relation to the signing of the Declaration of Independence in 1776.

Muir's report provided a look inside the secure location where these documents are preserved. The Declaration of Independence was signed on July 4, 1776, a date commemorated annually as a national holiday. The U.S. Constitution, a separate but equally foundational document, outlines the framework of the American government. Seeing a draft of the Constitution offers a glimpse into the deliberations and revisions that shaped the nation's legal and political structure.