El Dorado is said to be a lost South American city that was fabulously rich; some legends even say it was literally made of gold! Despite many expeditions over centuries to try and find it, no one has yet succeeded.
Recent evidence shows this city may well have existed, its disappearance occurring several centuries ago in a remote region of northern Brazil. Apparently, an earthquake caused a giant lake to drain away, destroying the neighboring city’s livelihood and the local eco-system. Inhabitants abandoned the city and spread out across the South American continent.