SS America was built in 1938-40 and is not related to the SS United States.
She sailed under many different names for different owners and was under tow from Greece to Phuket, Thailand to become a floating hotel in 1993.
When the tow parted in an Atlantic storm, she was wrecked on the Canaries. She has been breaking up and sinking ever since. Last I heard, only the tip of her bow was above water.