A pyramid hidden within a hill on an island in West Java, Indonesia, could be the world’s oldest. Gunung Padang, also known as “mountain of enlightenment”, sits at the top of an extinct volcano and is considered a sacred site by locals.
The world's most diverse forest, the Amazon, may also host more than 10,000 records of pre-Columbian earthworks (constructed prior to the arrival of Europeans), according to a new study.
