The Arkansas Inland Maritime Museum is a maritime museum located at 120 Riverfront Park Drive, North Little Rock, Arkansas which opened on May 15, 2005. Its primary exhibit is the USS Razorback (SS-394), a World War Two Balao-class submarine which later served in the Korean, Vietnam and Cold Wars. The submarine was later transitioned to the Turkish Navy before becoming a museum ship. It is arguably the longest-serving submarine still existing in the world, having been commissioned by the United States and Turkey for 53 years of active duty.