RESEARCH BASE
Search 3,721 documents across 34 fields — every claim tier-rated by evidence
3,633 are the core, quality-scored corpus (34 lettered sections — see How We Work); the remaining 88 are cross-corpus synthesis documents (68 InterDocs, 12 Connections, 8 Theories) also indexed here.
178 results for "stone circle" — page 3 of 9
M_5_01 — Vitrified Forts of Scotland and Beyond
Over 60 hillforts across Scotland — and dozens more across France, Sweden, Germany, and beyond — exhibit walls whose stones have been fused together by extreme heat, reaching temperatures of 1,000–1,200°C.
M_5_05 — Archaeological Hoaxes and Forgeries — A Cautionary Catalog
The history of archaeology is punctuated by famous frauds, hoaxes, and forgeries — intentional deceptions that have misled researchers, distorted public understanding, and, in some cases, caused decades of wasted scholar
M_5_12 — Replication Archaeology & Experimental Reconstruction
Replication archaeology — the systematic reconstruction and testing of ancient technologies, tools, structures, and processes under controlled or field conditions — represents one of experimental archaeology's most produ
M_3_14 — Construction Replication Experiments and Megalithic Engineering Tests
Construction replication experiments — attempts to reproduce ancient building techniques using period-appropriate tools and methods — provide the most direct empirical test of whether proposed explanations for megalithic
M_3_15 — Construction Replication Experiments: Testing Ancient Building Methods
Construction replication experiments — attempts to reproduce ancient building techniques using only tools and methods available in the relevant period — provide the strongest empirical test of whether "impossible" ancien
M_3_10 — Ancient Astronomical Precision: Were They Really That Accurate?
Claims of extraordinary astronomical precision in ancient monuments — temples aligned to specific stars, pyramids oriented to true north within fractions of a degree, megalithic sites encoding the 25,920-year precession
M_3_08 — Ancient Precision Drilling — Core #7 and Petrie's Evidence
Among the most debated artifacts in discussions of ancient technology are granite drill cores and bore holes from ancient Egypt, particularly a piece catalogued as "Core #7" — a cylindrical granite core (approximately 10
M_3_01 — Impossible Precision in Ancient Construction
The Great Pyramid of Giza and Andean polygonal masonry demonstrate engineering precision that is VERIFIED, MEASURABLE, and often difficult to explain with proposed tool kits. These are not fringe claims — they are survey
M_3_06 — Unfinished Obelisk and Ancient Quarrying Evidence
The Unfinished Obelisk at the Northern Quarry of Aswan, Egypt is one of the most important archaeological sites for understanding ancient Egyptian stone-quarrying technology. Dated to the New Kingdom (most likely commiss
M_3_16 — Geopolymer & Ancient Concrete Hypothesis
The geopolymer hypothesis proposes that some ancient stone structures — particularly the Egyptian pyramids — were constructed not by cutting, transporting, and stacking quarried blocks, but by casting artificial stone in
M_3_03 — Archaeoacoustics and Acoustic Properties of Ancient Structures
Archaeoacoustics is the study of the acoustic properties of ancient structures, investigating whether builders intentionally designed ritual, ceremonial, and sacred spaces to produce specific sound effects — resonance, e
M_3_02 — Dendera "Light" Reliefs — Interpretations & Evidence
The Dendera reliefs are a series of carved stone panels in the Hathor Temple at Dendera, Egypt (Ptolemaic period, c. 50 BCE), depicting what mainstream Egyptologists identify as mythological scenes involving djed pillars
M_2_05 — Puma Punku H-Blocks — Engineering Analysis
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M_2_01 — Anomalous Megaliths: Nan Madol, Baalbek, and Unexplained Engineering
Several ancient megalithic sites worldwide exhibit engineering achievements that remain difficult to fully explain with our current understanding of the tools, techniques, and organizational capacity available to their b
M_2_03 — Yonaguni Monument — Natural or Man-Made?
The Yonaguni Monument is a massive underwater rock formation located off the southern coast of Yonaguni Island, Japan's westernmost point in the Ryukyu archipelago.
M_2_10 — Coral Castle and Modern Megalithic Claims
Coral Castle (originally "Rock Gate Park") is a structure in Homestead, Florida, built single-handedly by Latvian-American immigrant Edward Leedskalnin (1887–1951) between 1923 and 1951. The site comprises approximately
M_2_04 — Longyou Caves — China's Mysterious Hand-Carved Caverns
The Longyou Caves are a group of at least 24 large, hand-carved underground caverns discovered in 1992 near Longyou village, Quzhou prefecture, Zhejiang Province, southeastern China.
M_2_09 — Baalbek Trilithon and Megalithic Quarrying
The Trilithon of Baalbek — three colossal limestone blocks forming part of the podium (retaining wall) of the Temple of Jupiter at Baalbek (ancient Heliopolis) in Lebanon's Beqaa Valley — represents one of the most extra
M_2_17 — Sphinx Water Erosion Hypothesis — Schoch Debate
The Sphinx water erosion hypothesis (WEH) — the geological argument that the Great Sphinx of Giza and its enclosure show erosion patterns consistent with prolonged rainfall rather than wind-blown sand, potentially indica
M_2_06 — Bimini Road — Natural Formation or Ancient Structure?
The Bimini Road (also called the Bimini Wall) is a submerged linear formation of roughly rectangular limestone blocks located approximately 5.5 meters (18 feet) below the surface in the shallow waters off Paradise Point,
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