Hungary is live on Travelog with one city, Budapest, whose UNESCO listing was inscribed in 1987 covering the Banks of the Danube and the Buda Castle Quarter, then formally extended in 2002 to add Andrássy Avenue, a documented boundary change rather than a single unchanging listing.
Budapest's UNESCO listing is a genuine example of a site whose protected boundary grew over time, its 1987 inscription covered the Danube banks and Buda Castle Quarter, and Andrássy Avenue was only formally added in 2002. Its landmark pages are live now.
Live now