West Virginia Independence Hall is a historic government building at 1528 Market Street in downtown Wheeling, West Virginia, United States. It was built in 1860 under the supervision of architect Ammi B. Young for the federal government as a custom house, post office and courthouse. It is architecturally significant for its innovative uses of wrought iron as a framing material, and is historically significant for its role in the American Civil War. It housed the Wheeling Convention (1861), as well as the West Virginia Constitutional Convention (1863), which resulted in the separation of Unionist West Virginia from Confederate Virginia. This made it the only state to secede from a Confederate state during the war. The building was originally built as the custom house for the Western Distric