Langi Pyramid Platforms (Lapaha)
Approximately 28 megalithic stepped pyramid platforms — langi — built of massive coral-limestone slabs at the ancient Tu'i Tonga capital of Mu'a (modern Lapaha), on the southern shore of the Fanga'uta lagoon in Tongatapu. Conventional dating places the langi tradition c. 1200-1500 CE during the high Tu'i Tonga dynasty, contemporary with the Ha'amonga 'a Maui Trilithon 10 km north. Several langi preserve precision-cut notches and L-shaped corner joinery comparable in form to the Stonehenge mortise-tenons and to Peruvian polygonal wall construction — the same engineering idea applied to soft coral limestone instead of granite or andesite. The largest blocks exceed 7 tons. Local tradition records that the coral slabs were transported by sea from quarries on neighbouring islands (some accounts cite 'Uvea and Samoa, ~900 km of open ocean). Hugh Newman has documented the Mu'a / Lemuria etymological link explored in the alternative-history literature.
Walkthrough videos (1)
Megalithic Technology in Ancient Tonga: The Mysterious 'Langi' Pyramid Platforms | MegalithomaniaHugh Newman / Megalithomania