The Huntsville Depot, built in 1860, is the oldest surviving railroad depot in Alabama and one of the oldest in the United States. It stands on the Norfolk Southern line at the northern edge of downtown, exactly where it was when trains first rolled through on the Memphis and Charleston Railroad — the first line to connect the Atlantic seaboard with the Mississippi River. The building itself is a sturdy two-story brick structure that has changed relatively little since the Civil War.
The depot is now part of the EarlyWorks Museum complex, which also includes the Alabama Constitution Village and the Children's Museum. Together they offer a sweep through Alabama history from statehood to the industrial age. The depot displays a collection of historic locomotives and rolling stock in an adjacent yard, and the Civil War-era prisoner graffiti visible on the upper-floor walls is genuinely moving. The complex is central, walkable from the courthouse square, and a good half-day for families.