A stupa here near a town called Samangan (or Aibak), in

It is at the ancient, well preserved site of a Buddhist cave monastery. It
was probably destroyed by raiders from the north in about 460 CE (AD). The
site was excavated in 1959-60 and was only slightly damaged in the 25 years
of war.

The stupa is hewn into the solid rock of a large hill - and so cannot be
seen from the foot of the hill - it has entrances through caves at the foot
of the hill. From a distance all that can be seen is the square relic
chamber on the top.

Not the easiest place to visit