I came across San Giovanni Fortress, Montenegro in a search for things to do in Montenegro. Definitely worth a trip although with my knees “One thousand three hundred fifty-five steps.” may be a bit more than I can handle. It is on my Bucket List.
Official website: https://web.archive.org/web/20160308044811/http://kotor.me/en (Wayback Machine)
Atlas Obscura: https://www.atlasobscura.com/places/fortifications-of-kotor
Google Maps: Google Maps Fortress Location
Historical Marker DataBase: No listing located https://www.hmdb.org/
Instagram: Numerous listings located https://www.instagram.com/explore/tags/sangiovannifortress/
RoadTrippers: No listing located https://maps.roadtrippers.com/
Snapchat: No listing located https://www.snapchat.com/
Twitch channel or search: No listing located – https://www.twitch.tv/
UNESCO Site: https://whc.unesco.org/en/list/125 (PDF available)
Vimeo channel or search: No listing located https://vimeo.com/
Yelp: No listing located https://www.yelp.com/
https://www.youtube.com/results?search_query=Fortress+of+Kotor Both have many videos in common, but there are some differences.