Gaineswood is considered as one of the finest Greek Revival houses in America. Inside this masterpiece, there are domed ceilings, detailed plasterwork, and a pair of gilt mirrors facing and reflecting each other endlessly. On its grounds stand a slave house, a gazebo, and a small building functioning as a detached kitched.

Constructed in 1843 to 1861, it was designed by its owner and architect General Nathan Bryan Whitfield.

It was in 1856 that Whitfield decided to name the mansion Gaineswood, after the previous owner of the land, George Strother Gaines. Gaines made a big contribution, not only in Gaineswood's history, but also in Demopolis' history, in the 1830 Choctaw removal, and in the state. In 1817, Gaines encouraged the incoming French exiles to establish their Olive and Vine colony, which would make the future Demopolis.

Now, visitors can see Gaineswood and view some of the original Whitfield furnishings that were donated by the family's descendants.