The Odescalchi Manor is a two storey, three-wing structure with a U shaped ground plan. It was built by the Ilok nobles at the end of the 15th century as a fortified city citadel with a square ground plan and inner courtyard in a transitional Gothic-Renaissance style. The baroque classicist Odescalchi manor with its immediate surroundings is one of the most prominent microenvironments in Ilok.