This is the hot springs bath house of Hamat Grader. It was Active untill the year 749. It suffered a damage of multiple earthquakes until it became unrepairable. Only half of this site is excevated because the Syrian built a bunker at unexcevated part of it. Interesting fact that he mentioned is that the faces of the fountains we're destroyed by a muslim caliphate. This place is now closed for public due to the deteriorated state it is in. The state of israel is going to start a project to rehabilitate it and hopefully open it for the public
Just to add on what was already mentioned. These baths and the ajdacent small town, were linked to the major Roman city of Gadara, located on an elevated plateau several KM's to the south, in Jordan (the ruins are called Umm Qais and are very impressive). The Israel-Jordan border is just a few minutes walk from the baths, along the Yarmuk river. The baths were excavated the site was excavated in the late 70s and to the 80s and prepared for visits (the nearby modern hot springs facilities are a popular leisure and SPA site) but the harsh weather, erosion caused by the solphur and minerals, vegetation that thrives in the ruins and more, caused to site to deteriorate and subsequently to be closed to the public. The speaker is an Israeli Antiquities Dep. conservation specialist and in addition to presenting the site (that is, as mentioned, now fenced) he summerizes the challenges and aims of the concervation project that is about to start. Hope this helps a bit.