The “Old Stone” (Öreg-kõ) in Bajót is one of the most beautiful rocky slopes of Gerecse, rising like an eagle’s nest, and on its eastern side is one of the most spectacular caves in Hungary, the Jankovich cave, which has a very interesting, huge dome-shaped hall. If you had visited the cave at the beginning of the last century, you would not only have been confronted with a working quarry, but also with a cave that looked much smaller than the one we see today. In fact, the sediment that had accumulated over the centuries was 4 to 5 metres high inside, so much so that the existence of a back room was not even suspected. The first excavation took place in 1913, and already during this excavation many bones and pottery remains were found, including a large quantity of cave bear bones. The greatest scientific sensation was the discovery of the inner chamber, which was opened up at the back of the cave. This back room, located at a deeper level, must have been blocked by a lot of fallen rock debris and clay at some time during the late Ice Age and was completely untouched for about 3,000 years. As a result, a variety of stone tools used by Neanderthal cavemen, jasper spearheads, and blades made from the teeth of cave bears have been recovered intact. The archaeological importance of the site is illustrated by the fact that a separate prehistoric culture, the Jankovichien, was named after the artefacts found here.
http://bajot.hu/turizmus/jankovich-barlang/