Aguada Fénix - Credit: Wikimedia Commons
Aguada Fénix is a large Preclassic Mayan ruin located in the state of Tabasco, Mexico, near the border with Guatemala was discovered by aerial survey using laser mapping, and announced in 2020. The flattened mound, nearly a mile in length and between 33 and 50 feet tall, is described as the oldest and the largest Mayan ceremonial site known. The monumental structure is constructed of earth and clay, and is believed to have been built from around 1000 BC to 800 BC. Read more on Wikipedia
Source: en.wikipedia.org