The Arkansas State Capital in Little Rock was built on the site of a state penitentiary and opened in 1915 after 16 years of construction. Local limestone was used for the Neoclassical style building that resembles the US Capitol. The dome rises 213 feet and is topped by a lantern-style, 24-karat gold leaf cupola. The state’s most famous governor was William Clinton. Arkansas became the 25th state on June 15, 1836.