Unearthing the Impossible: A Retrospective of Josh Gates’ Most Significant 2025 Discoveries

 For Josh Gates, 2025 was a year defined by extreme contrast: it featured his most harrowing brushes with death and some of the most profound archaeological breakthroughs of his twenty-year career. As the host of Expedition Unknown continues his recovery in early 2026, the global scientific and fan communities are looking back at a twelve-month span that fundamentally shifted our understanding of several “lost” histories.

From the depths of the Mediterranean to the dense canopy of the Amazon, here are the standout discoveries that made 2025 Josh Gates’ “Golden Year” of exploration.

The Sunken Sanctuary of Alexandria (Egypt)

In early spring, Gates led a deep-sea diving expedition off the coast of Alexandria that yielded a find described by local authorities as “once-in-a-century.” Utilizing a new type of sub-surface Lidar, Josh and his team identified a collapsed marble structure buried beneath ten feet of silt.

Upon excavation, they revealed the “Sanctuary of the Sunken Libations,” a private prayer chamber believed to belong to the Ptolemaic dynasty. The discovery was anchored by a perfectly preserved bronze statue of Isis, still clutching a ceremonial scroll made of lead. This find provided historians with the first tangible evidence of how the Greco-Egyptian elite practiced private religious rites during the city’s final years before the Great Earthquake.

The Lost “Ghost Fleet” of the Solomon Islands

Shifting his focus to modern history, Josh spent the summer in the Pacific, searching for the final resting place of the USS Valance, a destroyer that vanished during the Battle of Guadalcanal. While many had searched the “Ironbottom Sound” before, Josh’s team moved further north, following a hunch based on declassified Japanese naval logs.

In August, they located the wreckage at a staggering depth of 3,000 feet. The discovery was more than an archaeological win; it was a moment of closure. The team captured high-definition footage of the ship’s nameplate and its remarkably intact bridge. This expedition eventually led to a memorial service at sea for the families of the missing crew, proving that Josh’s missions are often about more than just treasure—they are about the human story.

The “Jaguar City” of the Amazon (The Fateful Find)

Perhaps the most famous—and infamous—expedition of the year took place in November. Deep within the unexplored “Region of the Mist” in Brazil, Gates and a team of local guides discovered a pre-Columbian stone complex they dubbed the City of the Jaguar. The site featured a series of stepped pyramids and an intricate irrigation system that suggests the Amazon was home to a much larger, more sedentary civilization than previously believed. However, this breakthrough came at a massive cost. It was during the documentation of the central plaza that Josh was struck by the Jararaca pit viper, an event that led to his dramatic emergency evacuation and the three-week battle for his life that captivated the world.

The Silver King’s Vault (Bolivia)

Just before his Amazon trip, Josh achieved a long-time personal goal: finding the lost silver caches of Potosí. Following a trail of cryptic “church ledgers” found in a monastery in Sucre, Josh located a hidden vault beneath a colonial-era mine.

Inside, the team found a collection of silver ingots stamped with the seal of the Spanish Crown, alongside a cache of Incan gold artifacts that the Spanish had presumably hidden from their own tax collectors. The find was valued at millions, but for Josh, the real treasure was the “Smoking Gun” evidence of how colonial mining and indigenous culture collided in the 17th century.

Looking Toward 2026

As we enter 2026, Josh Gates remains in physical therapy, but the data collected from these four historic expeditions is currently being analyzed by universities across the globe. 2025 proved that despite the dangers, the world still has secrets left to tell.

Josh’s discoveries this past year have filled in gaps in the historical record that had been blank for centuries. While the explorer himself is currently sidelined, the echoes of his 2025 “Great Adventure” will be felt in the world of archaeology for decades to come.