The ocean holds some of the biggest secrets on earth. As a matter of fact, 95% of the ocean remains unexplored and uncharted, especially below the surface, even with all the technological breakthroughs of the past couple of decades.

There’s still plenty to be seen and discovered in the big blue sea. More often than not, something pretty strange finds its way to the surface and people all over the world start wondering what actually happened there.

So, from conspiracy theorists to ecologists, to scientists, everybody has a say on those things. That’s why today, we’re going to let you know about 25 of the strangest things ever caught underwater, so you’ll be the judge in every case:

25. Galleon San José

It was recovered by the Woods Hole Oceanographic Institution (WHOI) - Reuters

For decades people wondered about the fate of the sunken Galleon San José. This Spanish navy ship was destroyed by a British squadron near Baru and found in late 2015 near the coast of Cartagena, Colombia. 

The Spanish ship had a treasure valued in $17 billion dollars as of 2018. Obviously, that kind of money forced every party involved to get into a legal dispute about who should actually be entitled to that much gold and silver.

24. Giant Lego Man

This is actually adorable - Boing Boing

Artist Ego Leonard has already pulled this off three times. He’s left 8-foot-tall Lego men near the coasts of the Netherlands, Florida, Japan, and the United Kingdom. His purpose is still undisclosed.

Picture taking a walk on the beach and coming across a washed-up giant Lego man with a t-shirt that reads “No Real Than You Are”. I’d actually love to take one of these to my backyard.

23. Mammoth Leg

It was discovered by a dog - Vorply.com

Little Daisy was enjoying her morning walk in the Dunwich coast when she came across a washed up mammoth bone. Apparently, her owner was pretty impressed by the fossilized 8-pound bone so she contacted the authorities.

It’s still unclear how this bone made its way to the shores of England but it’s believed to be over 2,000 years old. Sadly for Daisy, she wasn’t allowed to keep her all-time greatest discovery. Poor thing.

22. Conehead Skulls In Mexico

Skull deforming was a common ritual in some cultures - INAH

For ages, people have wondered about the Missing Link of human evolution. That speculation rose again when they found these conehead skulls near the coast of Sonora, Mexico when digging for an irrigation system.

“This was a Hispanic cemetery with 25 skulls, and 13 of them have deformed heads,” researches told the media back in 2012. However, it seems that deformation was man-made and not the product of evolution or aliens like many people speculated.

21. S.S. Gairsoppa 

Eighty-five people died during its sinking - National Geographic

What would you do if you came across $210 million dollars? Well, that’s a question you could ask Odyssey Marine, the company that found the S.S. Gairsoppa and the legendary treasure it held.

This cargo ship was hit by a German torpedo near the coast of Ireland in 1941 when it was coming back from India. Thus far, they’ve recovered over 200 tonnes of silver, 20% of which will go directly to the arks of British Treasury.

20. Wels Catfish

They can live as much as 50 years - Game and Fish

There have been plenty of stories about people being dragged to the bottom of rivers by a ‘mysterious presence’. Well, that’s not that mysterious at all, as it may be another case of the Wels catfish, the biggest of its kind.

They can be as big as 16 feet and weigh as much as 660 lbs. They eat everything from insects to birds, mice, and frogs, and won’t hesitate to attack humans to protect their nests. It’s mostly found in Europe.

19. The Engines Of The Saturn V Rocket From The Apollo 11 Mission

The Apollo was launched on July 16, 1969 - Space.com

There have been countless conspiracy theories claiming that Neil Armstrong and his colleagues never made it to the moon. However, perhaps this could help ease their minds, as they actually found the engine of the Saturn V Rocket.

Amazon CEO Jeff Bezos led the expedition that came across the engine of the legendary rocket. And while that may not be enough proof that they actually made the lunar landing, at least it’s a start.

18. 2,400-Year-Old Greek Vessel

Due to the lack of oxygen, the ship remains almost intact - National Geographic

Back in 2018, archeologists found what it seems to be the oldest impact shipwreck in human race history. This 75-feet Greek Vessel found below the surface of the Black Sea is believed to be over 2,400 years old.

“A ship surviving intact from the classical world, lying in over 2 Km of water, is something I would never have believed possible,” claimed Professor Jon Adams, the investigator in charge of the expedition. 

17. 28,000 Rubber Ducks

This is just bizarre - Reddit

Surprisingly, this has happened several times and in different locations. What some may think is the work of pranksters is actually due to a storm that made 28,000 rubber ducks fall off a ship from Hong Kong to the United States.

The ‘Friendly Floatees’ have been spotted in Scotland, South America, Hawaii, Alaska, and even Australia since 1998. Notably, researchers have used them to try and understand the flow of water currents. 

16. The Baltic Sea Anomaly

It was discovered in 2011 - MysteriousEarth.com

The world was completely shaken when Peter Lindberg, Dennis Åberg, and their "Ocean X" diving team came across the Baltic Sea Anomaly near the Gulf of Bothnia, as it seemed like undisputed proof of UFO landings.

This anomaly looked like a sunken alien ship but scientists came to the conclusion that it was just a glacial deposit. However, many investigators aren’t convinced with that story but they haven’t been able to elaborate another hypothesis.

15. Stonehenge In Lake Michigan

Lake Michigan is one of the five Great Lakes of North America - Reddit

Lake Michigan was known for being the only one of the five Great Lakes located entirely within U.S territory. That was until underwater archeology professor Mark Holley discovered a Stonehenge 40 feet below its surface.

Apparently, said stones are arranged in a circle and one of them even has a carving of a Mastodon (an animal who’s been extinct for over 10,000 years), which only makes the story even more interesting and strange. 

14. S.S. Central America

It was originally named S.S. George Law - Research Gate

When a ship is called ‘Ship Of Gold’ you know there’s some cash in it. S.S. Central America used to transport huge loads of gold and silver from Central America to the eastern coast of the United States until a hurricane sank it in 1857.

This 280-foot monster left more than 3,000 pounds of gold in the bottom of the ocean until its discovery on 11 September 1988, when they recovered almost $150 million in gold. However, an Odyssey Marine Exploration also found 3,000 gold coins and 45 gold ingots in 2014, so it must be even more where that came from.

13. ‘Penis Fish’

They’re actually called Urechis Caupo - National Post

This one has to be one of the funniest and most bizarre things that have happened lately. One day, completely out of the blue, thousands of ‘Penis Fish’ washed up at Drakes Beach, California, leaving people in total disbelief.

Turns out they were just fat innkeeper worms that are rarely seen as they live underground. However, a powerful storm took them out of their comfort zone and exposed them in December 2019.

12. WWII Bombs

It’s still unclear how they got there - The Vineyard Gazette

Imagine going out for a swim and coming across 87 unexploded bombs from World War II. I would literally never set foot on that beach again. That happened to several Hampshire locals in 2011.

The explosive devices were found on the coast of Calshot beach before a crew took them to the Royal Navy. Some people think the Supermoon was responsible for taking them to the shore due to the low tide, but there’s no conclusive evidence thus far. 

11. Goliath Tigerfish

Congolese claim evil spirit ‘Mbenga’ enters the fish and make them attack people - Animal Planet

Well, if you think this fish looks like a giant piranha, that’s because that’s pretty much what they are. Found in the Congo River Basin and Lake Tanganyika, the Goliath tigerfish is not the kind of fish you want to come across.

It’s not unusual to see them attack people and they can even grow the size of a short person (4.9 feet) and weight over 110 pounds. The Nile crocodile is its only known predator, as it diets on every single fish - or thing - he can outpower.

10. The Mariana Trench

The site has been proposed as a nuclear waste disposal site - NPR

The Mariana Trench holds plenty of secrets that aren’t likely to be uncovered any time soon, as it’s the deepest part of the ocean and by a long stretch. In fact, it’s five times longer than the Grand Canyon and over 1.2 miles bigger than Mount Everest.

This trench was first roughly explored in 1875 but, given its depth, it wasn’t until 1960 when researchers first tried to descent. Film director James Cameron was the last to attempt it in 2012 and it holds some of the most unusual and strange creatures ever seen by the human eye. 

9. Giant Squids

Three institutions studied the phenomenon - ABC News

Giant Squids have been at the forefront of thousands of mythical stories. It’s pretty unusual to see one ashore, let alone hundreds of them, which is what happened in California during the winter of 2005.

Several researchers studied the squid and determined they were filled with parasites. However, it’s still unclear how they got them in the first place, and especially how they found their way to the shore, as they usually live around 2,800 feet below the surface.

8. 27 Pairs Of Hands

This is just scary - The Siberian Times

A fisherman came across 54 chopped off hands when taking a tour around the Beshenaya channel of the Amur River in Khabarovsk, a popular fishing location 30 kilometers near the Russian border with China.

The fisherman saw one hand and called the police, who found a bag of 54 severed hands. Up to this day, it’s still unclear who they belonged to, why they were chopped off, or anything at all. This is just bizarre.

7. Ancient Greek Computer

This computer is called the Antikythera Mechanism - Vox

Ancient Greece held some of the most interesting secrets and technological breakthroughs in human history. Antikythera Mechanism is a perfect example of it, as it’s the first analog computer developed by men.

Discovered by divers in the early 1900s, the computer was used to predict astronomical positions and eclipses to map the solar and lunar calendars. According to experts, it dates back to the second century BC.

6. Indian Lost City

The city was buried for centuries - CBS News

The 2004 tsunami ended up being a blessing in disguise for Hindu culture as it uncovered the ruins of a lost city close to the worldwide famous Mahabalipuram temple in Tamil Nadu, including a huge granite lion and several other remainings.

According to experts, this could be from a small and flourishing seaport city that existed before the water engulfed it. Rock sculptures were as high as 6 feet and archaeologists think they date back to the seventh century AD.

5. Pavlopetri

Pavlopetri is the oldest submerged city in the Mediterranean sea - Set Travel

Pavlopetri, which translates to Paul's Stone in reference to St. Pauli, was discovered in 1967 by Nicholas Flemming between the Elafonisos village and the Pounta coast. Apparently, it dates back to 2800 BC.

It was declared a part of the UNESCO underwater cultural heritage thanks to its architecture from the Bronze age. It’s still unclear how or why it sunk but it’s believed that the city served as Plato’s model for Atlantis. 

4. Loki’s Castle

It’s located between Norway and Greenland - Mynewsdesk

While some may not think that a field of active hydrothermal vents is something worth sharing with the rest of the world, Loki’s Castle became one of the biggest discoveries in human race history.

Why’s that? Well, scientists found microorganisms (Lokiarchaeota) that are believed to be the missing link in the evolution of the first species to walk the earth. It has been a matter of study since its discovery in 2005.

3. The Yonaguni Complex

This complex can be found 26 meters deep of the coast of Yonaguni - AmazingAncient.com

There has been a never-ending debate about whether the mysterious Yonaguni complex was man-made or not. Honestly, judging by the pictures, it’s hard to believe it’s a natural formation of rocks.

According to Masaaki Kimura from the University of the Ryukyus in Japan, the Yonaguni complex sunk over 2,000 years ago after an earthquake, meaning it would be a bit of a Japanese Atlantis city. 

2. The Lost City Of Heracleion

The city was also known for its Egyptian name ‘Thonis’ - The Scuba News

Archaeologists didn’t know much about the lost city of Heracleion before its discovery in 2000. Its name was mentioned several times in some ancient inscriptions and texts, but there was never true evidence of its existence.

That’s until archaeologist Frank Goddio finally found the lost city submerged 6.5 off the coast of Egypt after five years of research. It had statues over 16 feet tall, gold, scriptures, and even over 60 ships.

1. The Sunken City Of Dwarka

The first clear historical record of this city dates from 574 AD - TravelTogether.com

The sunken city of Dwarka holds the ultimate mysticism and secrets from the Hindu culture. In fact, it was founded by Lord Krishna himself before sinking, and experts think it’s over 9,000 years old.

That means the city of Dwarka is actually 4,000 years older than the first-known Indian civilization. Dwarka is considered one of the four Dharmas. The government of Gujarat wants to make it a tourist destination.