This tiny sunken city has been underwater for 3,000 years, with its remnants of ancient history now deep in the ocean.

These artifacts, well-preserved underwater, offer a glimpse into a world possibly older than known history. Over 20 years later, archaeologists still debate the origins of the submerged city.

Even though it is sinking, it is facing a double whammy as parts of the city faces being submerged underwater due to severe ...