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Classified papers, CIA armaments, Enigma devices, hidden treasures, and a massive collection of priceless artworks are just a few of the concealed hoards that investigators and adventurers have unearthed across the United States, Spain, Libya, and Germany. Additional discoveries, including survival gear, explosives, tools, letters, and even missiles, have been found in Australia, Syria, and other locations. These 10 recently uncovered secret stashes highlight the fascinating, enigmatic, and perilous world we inhabit.
10. Hidden Documents Stash
A probe conducted by the FBI into 67-year-old Robert Harwin, an analyst at the National Geospatial-Intelligence Agency (NGA), known for producing maps and analyzing satellite and drone imagery, resulted in the uncovering of a stash of classified and secret documents along with computer discs.
Harwin, who held top-secret clearance, resides in Maryland. A coworker of Harwin alerted the FBI that he had been seen transporting “a hefty plastic bag from NGA facilities” in Springfield, Virginia, multiple times. Harwin claimed he had taken the materials home “by mistake” and returned them “the following day.”
FBI surveillance captured Harwin moving a bag from his residence to the back seat of his Toyota. After securing a search warrant, FBI agents “searched Harwin’s home and confiscated a variety of secret and top-secret documents, along with other classified materials” from his house and NGA documents from his pickup truck. Harwin attributed the stash to being a “hoarder.”
9. Hidden Enigma Machines Stash
In October 2008, El Pais, a Spanish newspaper, discovered 26 Enigma cipher machines hidden in a “‘dimly lit office’ within the army’s primary headquarters in Madrid.” During the Spanish Civil War, Francisco Franco considered the German-made Enigma machines, supplied by Germany, as his “secret weapon” in the Nationalist forces’ struggle against the Republicans.
Adolf Hitler had pledged support to Franco, providing the Spanish dictator with his initial 10 Enigma machines. However, these were “commercial ‘D’ models,” which were less advanced than the versions used by Germany. Hitler and his high command likely feared that supplying Franco with the superior models could risk their capture by his enemies.
When the codes of the Enigma machines proved impossible to crack, Franco secured additional units. Antonio Sarmiento, Commander of the Nationalist Army, stated, “to illustrate the level of security these machines provide . . . The number of possible combinations is an astonishing 1,252,962,387,456.” It is believed Franco may have obtained up to 50 of these machines.
8. Hidden CIA Weapons Stash
The CIA maintains a hidden arsenal north of San Antonio, Texas. This secret stockpile was utilized during the 1961 Bay of Pigs invasion. The agency also supplies weapons from this cache to support insurgents “globally.” Despite being referred to as the “Midwest Depot,” documents and research by former CIA analyst Allen Thomson indicate that this codename never disclosed the cache’s “exact location.” Thomson describes the facility as a “covert site” used extensively for “clandestine missions.” Weapons from this hidden stash were sent to Iran during the Iran-Contra scandal, to “rebels in Angola and Nicaragua during the 1970s and 1980s,” and to “Afghan fighters opposing the Soviet Union.”
The CIA’s secret weapons cache was revealed through a lawsuit filed by Kevin Shipp, a former CIA employee, who alleged that toxins stored at the site caused illness in his family. The CIA prevented both the lawsuit and the publication of Shipp’s memoir detailing the toxins and their impact on his family.
7. Hidden Treasure Stash of Gaddafi
In a garden near Sirte, Libyan soldiers discovered more than just plants. The garden, situated in Muammar Gaddafi’s “fortified Zanaki Kamish,” hid a secret stash of buried valuables: gold, dollars, and euros. A local news report described the cache as “Gadhafi’s mafia funds,” allegedly amassed through the deaths of “thousands of Libyans.”
6. Hidden Art Stash
Jews fleeing Nazi Germany were forced to sell their art masterpieces at “shockingly low” prices, according to art dealer Hildebrandt Gurlitt, who amassed a collection of fine art during the 1940s. The artworks, including pieces by Pablo Picasso, Pierre-Auguste Renoir, and Henri Matisse worth £1 billion ($1.2 billion), were lost during World War II, Gurlitt stated.
During a “routine inspection,” customs officials found an envelope with £7,600 ($9,260) in cash on Cornelius Gurlitt, Hildebrandt’s son, despite no evidence of a legitimate income source. Authorities discovered he was gradually selling the “lost” collection to “fund his lifestyle.” A subsequent “raid” on Cornelius’s Munich apartment uncovered the hidden art stash. Officials prohibited media coverage of the discovery until efforts could be made to identify the rightful heirs of the artworks.
5. Hidden Cold War Survival Stash
During a standard check of the Brooklyn Bridge’s structure, New York City workers stumbled upon a hidden Cold War survival stash concealed within the bridge’s stone foundations. Found in a vault close to Lower Manhattan’s East River shoreline, the cache included “water drums, medical supplies, paper blankets, medications, and high-calorie crackers . . . all sealed in numerous airtight metal containers.”
Historians were fascinated by the dates marked on the cardboard boxes: 1957, the year Russia launched the Sputnik satellite, and 1962, the year of the Cuban missile crisis. Some containers featured Office of Civil Defense labels. While the site would not have shielded people from a nuclear attack, its presence might have provided psychological “reassurance,” according to former Assistant Secretary of Defense Graham Allison.
4. Hidden Explosives Stash
In October 2013, a hidden stash of triacetone triperoxide (TATP), a powerful explosive often used by terrorists, was found in southwestern Western Australia. A local resident reported discovering a bag of the white crystalline substance in the Leschenault Estuary, near Australind, 156 kilometers (97 mi) south of Perth. A joint task force, including counterterrorism officers, crime squad members, and state security agents, investigated the find and scoured the estuary for more TATP.
The bomb squad detonated the initial packages, but a subsequent search revealed a third package of the explosive in an “abandoned caravan park,” prompting the evacuation of the area while bomb experts conducted their investigation. Police raided a house in Bunbury, arresting a man linked to the case.
3. Hidden Russian Missile Stash
An Israeli spy satellite confirmed Western intelligence analysts’ suspicions that Russia has been supplying Syria with missiles. These weapons are “stored” in hidden caches across Syria. Israel’s Eros-B satellite captured clear images of the missiles on trucks within a Latakian military base. Prior to the satellite’s images, evidence of the missiles’ presence was limited, as they were hidden in secret stashes. The “highly precise” mobile short-range ballistic missiles have a range of 500 kilometers and can carry nuclear warheads. These weapons have played a key role in Russia’s support of Syrian President Bashar Assad against insurgents seeking his overthrow.
2. Hidden Letters to Hitler Stash
A recently uncovered collection of letters written by “ordinary Germans” to Adolf Hitler between 1925 and 1945 reveals that, despite “a few dissenters,” many citizens seemed to adore their fuhrer. The Soviet Secret Police took Hitler’s correspondence to Moscow in 1945, and the letters “were lost for decades.” However, “a significant cache” of them was found in the KGB’s Special Archive. Edited by University of Halle lecturer Henrik Eberle, Letters to Hitler “is the first volume to be published in English.”
The collection offers a glimpse into how Germans viewed Hitler during the two decades leading up to the end of World War II. In an 80-page 1930 Christmas letter, 32-year-old Elsa Walter from Karlsruhe, Germany, calls Hitler the “leader of the German freedom movement” and offers her support to the cause. She later became a “high-ranking Nazi Party official” in Poland. Many children idolized Hitler. Lotti H., a Berlin girl, referred to him as her “dear leader” and, in a poem, urged him to “rest” from his “work” and “troubles.” Susie and Daisy J., from Sudetenland, expressed their gratitude for his liberation and thanked him for bringing them “into your beautiful Reich.” A Ukrainian archbishop, a German Evangelical Church clergyman, and other religious leaders sent telegrams endorsing his fight against “godless” Bolshevism.
1. Hidden Tools Stash
The waves of Pleistocene Lake Lahontan carved out Nevada’s Hidden Cave 21,000 years ago. During one of the dry periods that alternated with the cave’s flooding, Native Americans explored it, “leaving behind a well-preserved, layered record of their presence.” Their cultural artifacts and “natural deposits” accumulated inside the cave until its entrance was nearly “blocked by a debris cone.” The cave remained hidden until the 1920s, when it was rediscovered, and “teams of archaeologists excavated” it during the 1940s, 1950s, and 1970s.
One of the explorations, led by David Hurst Thomas in 1978 and 1979, uncovered a stash of tools used for various tasks. “Flat, abrasive grinding stones” were used to process pinyon pine nuts and other “hulled crops.” Intact and functional stone projectile points were found, used for tipping darts and arrows. The cache ensured a surplus of tools, stored underground in Hidden Cave, would be accessible when needed.
