Courtesy of Curiosity.com:
“Buried treasure is usually stuff of fiction, appearing only in pirate stories and adventure legends. But many treasures are anything but fictional. Take the treasure chest hidden in the Rocky Mountains by former archaeologist and art dealer Forrest Fenn. Fenn hid the chest in the midst of the Great Recession to get people out into nature, and he published a mysterious poem full of clues as to its whereabouts to entice would-be treasure hunters. Likewise, it’s confirmed that the Nazis sunk containers into Lake Toplitz in the Austrian Alps in the last few months of World War II—many of these have already been recovered, though they contained more munitions and documents than gold and riches. While some believe there aren’t any more containers to be found, that probably won’t stop explorers from venturing into its watery depths in hopes of finding something of value.
Experts are less sure about the buried treasure within Oak Island Money Pit, off the coast of Nova Scotia. Teenage boys discovered the pit in 1795 and, since piracy was all the rage at the time, they suspected that there might be buried treasure in the pit. The boys didn’t find anything, but solo hunters and even treasure-hunting companies are trying their luck to this day. On the other hand, plenty of treasures have been retrieved from Lake Guatavita in Colombia. It’s believed to be the spot where the leader of the Muisca tribe (dubbed El Dorado, or “the golden one”) would cover himself in gold dust, float into the water, and toss treasures into the lake to honor the gods. Many of these treasures are in the Gold Museum in Bogotá, though the rest may be difficult to unearth—the Colombian government has banned swimming in the lake. ”