The Ha'amonga 'a Maui Trilithon is a unique historical site in Tonga, featuring a stone archway made of coral limestone, dating back to the 13th century. The monument is believed to have been built by the Tongan King, Tu'i-ta-tui as a sign of unity among the various chiefdoms of Tonga. The structure, often referred to as the 'Stonehenge of the South Pacific', showcases ancient Tongan engineering and architectural skills.
