Tagged “archaeoastronomy”
Abu Simbel Temples
How did the builders of the 13th century BCE carve a temple 60 metres into a solid sandstone cliff and align it so that the rising sun would reach the innermost sanctuary on two days each year — and then, three thousand years later, how did modern engineers cut the whole mountain-temple into pieces, lift it 65 metres up a cliff, and reassemble it so faithfully that the sunbeam still arrives?
c. 1264 BCE (19th Dynasty, reign of Ramesses II) · Abu Simbel, Aswan Governorate, EgyptAdded July 2026
HIGH WONDERGate of the Sun and Kalasasaya, Tiwanaku
How did the Tiwanaku, working at nearly 3,850 metres without iron tools, carve the Gate of the Sun and its intricate Sun/Staff God frieze from a single ten-tonne block of andesite, and lay out the cardinal-aligned Kalasasaya so precisely that the equinox sun still rises through its eastern gateway?
c. 500–1000 CE (Tiwanaku culture apogee) · Tiwanaku, La Paz Department, BoliviaAdded July 2026
MUST READHa'amonga 'a Maui
On a low coral island with no metal, no wheels, no draft animals and no quarryable hard rock, how did Tongan builders cut three coral-limestone slabs of perhaps thirty to forty tonnes each, stand two of them upright, and then lift the third more than four metres into the air and drop it into mortise slots cut in their tops — and what was the finished gateway actually for?
Tu'i Tonga dynasty — traditionally c. 1200 CE, radiocarbon-dated c. 1320-1460 CE · Heketa, near Niutoua, Tongatapu, TongaAdded September 2026
HIGH WONDERNewark Earthworks
How did the Hopewell lay out miles of near-perfect circles, squares, and an octagon to a shared unit of measure — and encode the moon's 18.6-year standstill cycle into that geometry — without writing, metal tools, the wheel, draft animals, or any known surveying instruments?
Hopewell culture (Middle Woodland period), c. 100 BCE – 500 CE · Newark, Licking County, Ohio, United StatesAdded July 2026
Serpent Mound
Which Native American culture actually built Serpent Mound and when, and what did its serpent form and solstice alignment mean to the people who raised it?
disputed: c. 300 BCE (Early Woodland/Adena) or c. 1000-1100 CE (Late Prehistoric/Fort Ancient) · Adams County, Ohio, United StatesAdded July 2026