We recently posted videos of the 110-year-old battleship USS Texas currently being repaired and refurbished in drydock at the Gulf Copper Shipyard in Galveston. The Texas is the oldest remaining dreadnought battleship and only one of six surviving ships to have served in both World War I and World War II.
I still have vivid memories of visiting the battleship Texas as an elementary school kid. Playing on an anti-aircraft gun was particularly fun, as I recall. Here is a History Guy video about the guns of the venerable battleship.