Today, Doodle for Google is celebrating Sơn Đoòng Cave, a colossal cavern and UNESCO world heritage site, which was originally discovered on April 14, 2009.
Sơn Đoòng Cave is based deep within the remote jungles of central Vietnam’s Phong Nha-Kẻ Bàng National Park. In 1990, a local farmer accidentally stumbled on an enormous entrance of the cave, however, it remained untouched until 2008.
From the British Cave Research Association, the intrepid speleologists Howard and Deb Limbert conducted the first official survey of the cave and announced that it is the largest cave on the planet.
Inside Sơn Đoòng’s undisturbed inner chambers (big enough to fit an entire city block of 40-story buildings!), scientists discovered a wealth of record-breaking geological formations including the world’s largest limestone pearls and tallest stalagmite.
The search engine giant is now celebrating the cave by displaying the new special Sơn Đoòng Cave doodle artwork on the homepage of Google in Vietnam, Mexico, Costa Rica, the Dominican Republic, Chile, Brazil, Argentina, United Kingdom, Sweden, Romania, Greece, and Thailand.