Unsolved Mysteries from Ancient History
Aug 03, 2023 By Sean William

If you are fascinated by ancient history and mysteries from past civilizations, this blog post is for you! It dives deep into the mysterious events that shaped our world today and continue to leave us with unanswered questions.

We will explore some of the greatest enigmas throughout human history: from the lost city of Atlantis to Stonehenge, plus many more. These stories contain incredible secrets shrouded in mystery - whose truth may never be fully uncovered.

As we delve into these age-old unsolved mysteries, prepare for a journey back in time!

Thonis-Heracleion: Egypt's Sunken City

One of the most mysterious and awe-inspiring underwater discoveries is that of Thonis-Heracleion, a lost city in the Mediterranean Sea.

This ancient Egyptian port was believed to have been submerged for more than 1,200 years until its reemergence in 2000. Today, it’s considered one of Egypt's most important archaeological sites.

The city’s origins date back to the 12th century BC. With an area of 350 hectares, Thonis-Heracleion was a bustling port that connected Thebes and Canopus to Greece. It included several monuments, temples, statues, and other artifacts built on an artificial island.

Guanabara Bay's Mystery Island

Guanabara Bay in Brazil is home to a mysterious island that has baffled locals since its discovery in 1501. The island, dubbed “Ilha da Queimada Grande” (Island of the Big Fire), is believed to be inhabited by thousands of venomous snakes - so much so that it has earned the nickname “Snake Island.”

The island is home to the golden lancehead pit viper, a highly venomous snake species that can only be found on this island. Scientists believe that due to its isolated location, the snakes on the island evolved so that their venom is three to five times more potent than other lancehead species.

As a result, the Brazilian Navy has forbidden any visitors from setting foot on it.

The Stone Spheres (Costa Rica)

Along the coast of Costa Rica’s Diquis Delta, a series of hundreds of mysterious stone spheres can be found. These spherical rocks range from a few inches to over 8 feet in diameter, and their exact origin is still unknown.

The earliest known spheres date back to AD 600, but some scientists believe they may have been built as long ago as AD 200. It is still being determined what their purpose was, although some theories suggest they were used for astronomical or spiritual rituals by pre-Columbian cultures.

The Mystery of Easter Island

The Rapa Nui people of Easter Island are some of the most mysterious ancient civilizations known to us. The island, located in the southeastern Pacific Ocean, is home to nearly 900 monumental statues called moai that are up to 33 feet tall and weigh up to 82 tons.

They were carved from volcanic rock between 1100 and 1680 CE by the Rapa Nui people using basalt, obsidian, and bone tools.

The origin of the statues is still uncertain, but recent studies suggest they may be linked to ancestor worship and served as a way for the Rapa Nui people to connect with their past.

The Strange Stone Statues (Indonesia)

The Mentawai Islands of Indonesia are home to mysterious stone statues that have left experts scratching their heads.

The locals discovered the statues, called “Janggan,” in 2003, and range from 4-7 feet tall. Some appear to be in human form, and others resemble mythological creatures such as dragons or turtles.

It is still being determined who built the statues and why, as no records exist in any historical texts.

Some archaeologists believe they may be related to ancient animistic beliefs or shamanic traditions, but this still needs to be confirmed. The strange stone statues of Indonesia remain a baffling mystery that continues to captivate us today.


One of the most legendary figures in ancient history is Alexander the Great. He was a king of Macedon credited with conquering much of the known world during his lifetime. But when he died at age 32, his body went missing and was never found.

Many theories have been suggested about what happened to Alexander's remains, with some speculating they could be located in a secret tomb or even hidden away by Persian kings.

The Lost City of Z

The Lost City of Z is an ancient city believed to have existed in the Amazon rainforest. A Spanish explorer first mentioned it, Pedro de Cieza de León, in 1542, but it has become the subject of much debate and speculation since then.

No archaeological evidence or other artifacts have been found to prove its existence, but some believe that it was home to an advanced civilization that predated modern society.


The legend of King Arthur is one of the most enduring stories in history. He was said to have been a powerful ruler who reigned over Britain during the 5th and 6th centuries. But while there are references to him in medieval documents, there is no evidence proving he existed or what his true identity was - if he even had one.

Tales of his knightly deeds and magical sword Excalibur have been popularized in books, films, and TV shows. But despite the many theories that have been proposed, King Arthur remains shrouded in mystery.

We may never know if he was real or just a product of our collective imagination.

Nazca Lines (Peru)

The Nazca Lines are one of the most famous ancient mysteries in the world. Located in Peru, they consist of hundreds of gigantic geoglyphs etched into the desert floor.

The lines range from simple geometric shapes to more complex figures such as animals and plants, with some measuring up to 1,200 feet long!

Who made these lines and why? Some believe they were used as an astronomical calendar or religious ritual, while others think they may have been an ancient form of communication. Whatever their purpose, the Nazca Lines remain one of our history's most fascinating unsolved mysteries.


Rondawheel is a mysterious stone circle located in the Scottish Highlands. It consists of eight large boulders arranged in a perfect circle, each standing at least four feet tall. The construction and purpose of Rondawheel have yet to be discovered, as no records exist about who built it or when.

Some believe it may have been a sacred site used by ancient Druids or Picts, while others think it could have been a place of worship. But we need further evidence to speculate about the true origin of Rondawheel and what hidden secrets it holds.

The Mysterious Voynich Manuscript (Czech Republic)

The Voynich Manuscript is an ancient book written in a strange unknown language, discovered by a Polish-American book dealer Wilfrid M. Voynich in 1912.

Over the years, it has piqued the interest of historians and cryptographers alike, as it contains intricate illustrations and diagrams that still need to be decipherable.


One of the most mysterious statues in Greece is Lord Byron's, located in a small fishing village called Mesolongi.

The statue stands 18 feet tall and was carved from marble by Italian sculptor Luigi Ruggieri. It was unveiled in 1879, but what is so fascinating about it is that no one knows who commissioned the statue nor why it was made.


Who built the mysterious stone statues in Indonesia?

The origin of the strange stone statues in Indonesia has yet to be discovered. They were discovered in 2003 and ranged from 4-7 feet tall, but it is still being determined who created them or why. Some archaeologists believe they may be related to ancient animistic beliefs or shamanic traditions, but this remains unconfirmed.

Where is Alexander the Great buried?

The remains of Alexander the Great have never been found. Many theories have been suggested about what happened to his body, but none have been proven true. His burial site remains a mystery to this day.

Was there a real King Arthur?

The existence of King Arthur is still debated among historians and archaeologists. While there are references to him in medieval documents, there is no evidence proving he existed or what his true identity was - if he even had one. Many believe he was just a product of our collective imagination.


From the lost city of Z to King Arthur's legendary sword Excalibur, these mysteries have been shrouded for centuries. While we may never know the true stories behind them, they continue to captivate and inspire us with their complexity and intrigue. Whether you believe in their fantastical tales or not, there is something undeniably fascinating about these age-old enigmas. Let's continue to explore these tales and perhaps one day uncover their secrets!