Baltic Sea Anomaly: Discovered in 2011, this mysterious, circular object on the Baltic Sea floor resembles a spaceship, sparking theories ranging from a natural rock formation to a sunken UFO.
Yonaguni Monument: Found off the coast of Japan, this underwater structure appears to have man-made steps and terraces, but its origin—whether natural or an ancient civilization—remains a mystery.
Bimini Road: Located near the Bahamas, this underwater rock formation looks like a paved road. Some believe it to be remnants of Atlantis, while others argue it's a natural occurrence.
The Submerged Pyramids of Yonaguni: Off Japan’s coast, these structures bear a striking resemblance to pyramids and terraces, raising questions about ancient, unknown civilizations or natural geological formations.
Milky Sea Phenomenon: Sailors have reported vast areas of the ocean glowing blue or white at night. While bioluminescent bacteria might be responsible, the exact cause and scale of this phenomenon are not fully understood.
Underwater Crop Circles: Discovered off the coast of Japan, these intricate patterns are created by pufferfish during mating rituals. The exact reason for the complexity and beauty of these circles remains unclear.
The "Lost City" of Cuba: In 2001, sonar images off Cuba's coast revealed what appeared to be a city-like structure deep underwater, leading to speculations about ancient civilizations, but it remains unexplored and unexplained.
Deep Sea Eels of the Gulf of California: In 2015, researchers found a dense aggregation of garden eels in the deep Gulf of California.