“…At least one of its units was built in the timeframe of 25,000-14,000 BCE. However, it concerns only the oldest part of its complex and multiple-phased construction process; this unit was sculpted in the natural lava hill and then architecturally developed, probably with underground chambers (Natawidjaja et al, 2023). Afterward, the site was abandoned until 7,900-6,100 BCE, when it was deliberately buried with soil.…”