. >> reporter: dubrovnik, croatia. you've nevereen to this gem of the adriat chances are you've seen this cityscape straight out of a fantasy. or, recognize that music ♪ ♪ with its sea, ancient history,wi and these medieval wal dubrovnik was already a magnet for tourism. then, virtually overnight, thingsent into hyperdrive. that's the day the dragons came. is is king's landing from "game of thron." for seven of the series' eight seasons, drovnik was the backdrop of this most important of settings in one of the most popular d praised tv series of all time. and it's brought this modest balkan city a jolt of notoriety. >> i remember when i first watched it. it was just, "oh, my god!" >> well, first, we heard about thw was shot here.es," you knows and we were excited about that. >> so, like, croatia, this was like, one of the thingi was looking forward to the most, literally, was the "game of thrones" tour. >> reporter: that's right, now there are "game of thrones" tours. they're the mostular toursin a n tourists a year, r