Great piece of living history along the lakefront. If you are visiting the Rock and Roll Hall of Fame, be sure to visit the USS Cod as they are within a stone's throw from each other. Served as an active sub during WWII in Perth,Australia. You have the option of doing a self-guided or guided tour through the sub. Note- you will have to climb down and through hatchways so exploring may be difficult for those with mobility issues. Well worth the trip and be sure to check Groupon for discounts. Believe the adult admission is $12 a person; however we purchased 2 admissions for $15 on Groupon.