The cave was discovered in 1974, blasted open during a quarry. It's about an acre and a half of fantastical, bizarre rock formations formed over the ages.
Looks like brains.
These tendrils of stone actually grew up, defying gravity. Scientists think that this may be caused by magnetic fields, but nobody is sure.
A stalactite and stalagmite reaching towards each other, almost touching. There's only a once centimeter gap, which will only take a few centuries to fill. They call it, "Romeo and Juliet."
Overall, I'd say the cave was spectacular, and would definitely recommend it for anyone in the Beit Shemesh region.