Texarkana was founded in the early 1870s where two railroads met at the Arkansas-Texas border. The town straddles the border and is, politically, two towns with the same name. State Line Avenue marks the boundary between the two states and the two cities. The only U.S. post office located in two states can be found at 500 State Line, where Photographer's Island is a popular spot for taking photos of people standing in two states simultaneously. Another unusual attraction is the Ace of Clubs House, built in the shape of a playing card "club."
Texarkana is also home to the Texarkana Regional Arts Center, which hosts touring exhibits and works by regional artists; the Perot Theater, where touring national and international acts perform in an ornate 1924 theatre; the interactive Discovery Place Children's Museum; and the Texarkana Museum of Regional History. Other attractions in the area include Millwood State Park; Old Washington Historic State Park; and the Clinton Center at Hope, where visitors can tour the childhood home of former President Bill Clinton.