Ancient fortress found at bottom of lake in Turkey
Archaeologists have discovered the ruins of an ancient fortress believed to be about 3,000 years old at the bottom of Lake Van, located in eastern Turkey near Iran, per National Geographic.
How it remained hidden: Lake Van isn't connected to the ocean so it is highly susceptible to dramatic changes in water levels. Archaeologists believe the lake's water level was lower when the Uratu kingdom reigned from 860-590 BC. Locally, people talked about ruins from the Uratu kingdom at the bottom of the lake.