 By World War I , most of the ships had been withdrawn to secondary roles , with Elba having been converted into a seaplane tender . Puglia was the only member of the class to take an active role , based out of Durazzo . Etruria was deliberately blown up by the Regia Marina as a deception operation against Austria @-@ Hungary . The remaining ships were broken up for scrap in the early 1920s , though the bow section of Puglia was preserved at the Vittoriale degli italiani museum . 
