Just East of Muskogee is a World War Two memorial called Hyde Park. Arranged about the park are cannons, missiles, bombs, and vehicles from the era.
The pride of the Park is the diesel submarine USS Batfish.
She sunk Fourteen ships, three of which were submarines, and rescued three downed aviators in WWII and the Korean War.
I went and took a huge number of pictures of the outside and inside for reference and thought I should post at least this one up here.