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Theme · 3 sitesNo accepted answer
Debated
Debated
Theme · 3 sitesSound & resonance
Carved chambers that resonate, measured frequencies — acoustics as a possible intent.
The question
The cases in this themeWas the sound sought, or is it only an effect of the geometry?
A theme gathers cases that overlap — it asks the question, it asserts no cause. Each site keeps its status and its sources.
No accepted answerSite · India
Barabar Caves
Chambers carved into granite, polished like a mirror, whose walls throw back a prolonged echo at low frequencies. What were they for?
6 on the science side · 3 on the mystery side→
DebatedSite · Malta
Ħal Saflieni Hypogeum
10 meters beneath Paola, 3 levels of galleries hand-carved into the limestone. Seven thousand dead, red-ochre paintings — and a chamber where a baritone voice makes the whole hypogeum resonate at 70–114 Hz.
4 on the science side · 2 on the mystery side→
DebatedSite · Ireland
Newgrange
Who really slept at the heart of one of Ireland's oldest tombs?
7 on the science side · 5 on the mystery side→