To add an example to the confusion: the well-known bridge of Avignon is tagged as “ruins” even though it is restored and (though incomplete) and now in perfect condition. Besides that, the whole thing and its surroundings are much more an archeological site, where excavation and analysis is still going on. The whole previous archeological process has been filmed. I guess it’s tagged as ruins to match the many actual ruins/attractions in and around Avignon.