A new mystery awaits history buffs in Egypt. A team of Egyptian archeologists recently uncovered a black granite sarcophagus in Alexandria, and no one knows what is inside.
The sarcophagus, which is a tomb that is sometimes buried, was discovered July 1 during routine excavation work for the construction of a new building in Alexandria’s Sidi Gaber district, according to the Ministry of Antiquities. The team found it more than 16 feet below ground, inside a tomb they said likely dates back to the Ptolemaic period, which lasted from around 305 to 30 B.C.E.
In addition to the sarcophagus, the archeologists found an alabaster bust of a man that likely depicts the owner of the tomb. The sarcophagus itself is 6 feet tall, 8.6 feet long and more than 5 feet wide, making it the largest sarcophagus ever uncovered in Alexandria, according to Mostafa Waziri, general secretary of the Supreme Council of Antiquities.
When the team found it, they discovered a layer of mortar between the lid and the body of the sarcophagus, which suggests it has not been opened in 2,000 years.
For many years, archeologists had largely ignored Alexandria, according to Smithsonian. Even though the famous city has an important place in history, centuries of building has covered over many of the ruins and millions of people now live and work on top of what was once founded by Alexander the Great. But this new discovery is the latest in a series of finds in the last few decades, as researchers have been looking further into the city’s past.
When researchers do open the sarcophagus, it could give them a rare opportunity to examine whatever is preserved inside.
More Must-Reads from TIME
- Introducing the 2024 TIME100 Next
- Sabrina Carpenter Has Waited Her Whole Life for This
- What Lies Ahead for the Middle East
- Why It's So Hard to Quit Vaping
- Jeremy Strong on Taking a Risk With a New Film About Trump
- Our Guide to Voting in the 2024 Election
- The 10 Races That Will Determine Control of the Senate
- Column: How My Shame Became My Strength
Write to Abigail Abrams at abigail.abrams@time.com