Cassie Coppersmith

Secrets in Stone

History EN ↓ 19 episodes

Secrets in Stone explores the mysteries of the world’s ancient megalithic sites and what they reveal about our forgotten past.

Author

Cassie Coppersmith

Category

History

Podcast website

podcasters.spotify.com

Latest episode

May 30, 2026

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Episodes

Cambodia's Lightning Pyramid of Ta Keo: Ancient Machine or Simple Temple? 30.05.2026

Today we are exploring the mysterious "Lightning Pyramid" of Ta Keo in Cambodia — a massive five-tier structure built with an incredibly rare, ultra-hard sandstone that glows white at the top. The only pyramid in Cambodia made from this material. Official history says it was built in 975 AD, struck by lightning, and abandoned unfinished. But after walking the site and examining the evide...

Megalithic Tarawasi with Brien Foerster: Peru’s Hidden Mystery (First Visit!) 11.05.2026

🚨 Join me as I take you to one of Peru’s most intriguing and least-known megalithic sites — Tarawasi. In this episode, you’ll get on-the-ground footage of the site plus my exclusive sit-down interview with Brien Foerster right on the steps of Tarawasi — his very first visit. He shares his first impressions, thoughts on possible pre-diluvian origins, and comparisons to other megalithic sites acros...

Reassessing Ancient Cambodia: Live Presentation from the Quest for Ancient Civilizations Conference 05.05.2026

After traveling extensively in Cambodia and studying its ancient sites firsthand, I'm challenging long-held assumptions about Cambodia's ancient past. In my presentation at the Quest for Ancient Civilizations Conference, I shared mysterious LiDAR findings, Cambodia's lost ancient technologies and potential global connections long overlooked. I also answer great questions from the audie...

The Buried Pyramid of Thailand & The Mystery of Si Thep 12.03.2026

Deep in Thailand lies the ancient moated city of Si Thep, now a UNESCO World Heritage Site, surrounded by enormous earthworks, reservoirs, and more than one hundred ancient structures. But the most intriguing monument sits just outside the city walls — a pyramid that for centuries appeared to be nothing more than a natural hill.    Then archaeologists excavated the mound in 2008 anddiscovered a ma...

Why Is The OLDEST Technology the Most Advanced? The Clovis & Ancient Megalith Problem! 30.01.2026

The Clovis point is one of the most extraordinary andmysterious Ice Age technologies ever discovered. It appeared suddenly, fully formed and with no developmental history. It was one of the fastest and widest technological dispersals in human prehistory… and it appeared immediatelybefore the Younger Dryas catastrophe. In this episode, I follow the Clovis story from itsdiscovery to its collapse, an...

Koh Ker's HIDDEN 7-Tier Pyramid & Colossal Lingas: The Oldest Megalithic Site in Asia? - Part 1 24.12.2025

🚨 Hidden deep in Cambodia's jungle lies Koh Ker – an ancient megalithic city added to UNESCO in 2023 that's 7X bigger than Angkor Wat! Discover the massive solid stone 7-tier pyramid (Asia's tallest), colossal multi-ton lingas, a 7km dam creating Cambodia’s largest ancient reservoir, bizarre black-burned temples, a megalithic sanctuary and alignments linking this mysterious site to In...

Vat Phou's Shattered Megaliths: Clues to An Ancient Catastrophe in Laos 26.11.2025

Join me on a solo adventure to Vat Phou, a remote UNESCO site in southern Laos. This isn't your typical temple— it’s a lost megalithic sanctuary with serpent carvings and a peculiar crocodile stone, precision stonework, evidence of lost technology and signs of an ancient catastrophe that tilted boulders and reshaped the landscape. I'll walk you through the site's terraces, barays, and...

Unearthed Truths: 5 Clues That FLIP Cambodia's Timeline! 30.10.2025

I've been digging deep into Cambodia's ancient history! What I’ve discovered has truly surprised me, and led me to believe that much of what we accept about Cambodia's ancient past could be COMPLETELY WRONG. In this episode, we cover the TOP 5 CLUES that could completely rewrite Cambodia's timeline: 1) Dating techniques that don’t tell the full story; 2) Cambodia’s many overlooked...

Forgotten Angkor: LiDAR Reveals Hidden Technology 18.09.2025

Angkor Wat is Cambodia’s most famous temple, but it’s just one piece of a massive ancient city and a sprawling empire that once covered parts of Cambodia, Thailand, Laos, and Vietnam. For centuries, jungles, settlements, and war hid the true scale of this civilization—until LiDAR surveys in 2012 and 2015 mapped 2,100 km², revealing an engineered landscape unlike anything from the pre-industrial wo...

Yemen's Hidden Megaliths Part 2: Baraqish, Awwam, Barran, and the Old Marib Dam 29.08.2025

In the second and final episode of my new series on ancient Yemen, we will explore Yemen’s hidden megaliths. We’ll start with the ancient city of Baraqish, built on a massivemanmade mound, with its 14-meter high walls and monumental limestone. Next, we’ll explore the ancient sites of Awwam and Barran near Old Marib, both UNESCO World Heritage candidates, known for their grand pillars, intricate st...

Yemen's Ancient Megalithic Mysteries Part 1 – Timna’s Cyclopean Architecture 08.08.2025

In Part 1 of my new series on ancient Yemen, we will explore the ancient city of Timna. Timna’s ruins, constructed on a 65-acre oval-shaped mound, include massive granite cyclopean walls strikingly similar to sites found in Peru, Egypt, and apan. As a key center of the Qataban Kingdom on the Incense Route, Timna thrived on frankincense and myrrh trade, yet its monumental South Gate, Temple of Athi...

Ethiopia's Ancient Megaliths Part 3: Lalibela's Rock-Hewn Churches & Mysterious Standing Stelae 25.07.2025

Join me for the finale of the Ancient Megaliths of Ethiopia series, where we will discuss the iconic rock-hewn churches of Lalibela—masterpieces carved directly from solid rock. This site is much more complex, and I believe substantially older, than we’re being told. I will share my theories in this episode! We’ll also venture into southern Ethiopia to explore fields of standing stones with carvin...

Uncovering Ethiopia's Ancient Megaliths Part 2: Pre-Axumite Temples and Connections to Yemen 12.07.2025

Join me for Part 2 of this series on Ethiopia as we discuss the mysterious Pre-Axumite temples, some of the oldest structures in Ethiopia, dating back to at least 800-700 BC --- maybe earlier! Explore the Great Temple of Yeha with its precision cut limestone walls, unique Ibex carvings, and inscriptions linking it to Yemen’s ancient Sabaean civilization. We’ll also explore a massive 800 BC palace,...

Uncovering Ethiopia's Ancient Megaliths Part 1: The Mysteries of Axum 03.07.2025

Deep in Ethiopia’s highlands, the ancient city of Axumharbors megaliths that rival the grandeur of Egypt and Peru, yet remain relatively unknown and unexplored. In the premiere episode of my series on Ethiopia’s ancient sites, I will explore the awe-inspiring Northern Stelae Park, a UNESCO World Heritage site, including Axum’s massive 500 tonne obelisk. From false doors and windows mimicking multi...

Forbidden Secrets of Angkor Wat – A Discussion with Derek Olsen of Megalithic Marvels 19.06.2025

In this interview from earlier this year with Derek Olsen of @MegalithicMarvels, Derek and I discuss ancient Cambodia, and many examples of out-of-place-artifacts, LIDAR scan results and architectural styles that seem to point to an older history at Angkor Wat and the surrounding temples. I had so much fun researching and recording this episode, that I was inspired to start my own channel! Links:...

Java’s Unexplainable Pyramid Temple: Candi Sukuh 12.06.2025

In this episode, we dive into the enigma of Candi Sukuh, a stepped pyramid temple in Java. With its Mesoamerican-like pyramid, giant turtle guardians, fanged warrior statues, and provocative carvings of giants, elongated skulls, and four-tusked elephants, this ancient site defies conventional history.

Sambor Prei Kuk: Older Than Angkor Wat - But Not For the Reasons You Think! 31.05.2025

While exploring Cambodia's famous temples like Angkor Wat, I uncovered intriguing irregularities and surprising similarities to ancient sites worldwide. In this episode, we’ll dive deep into the "Temple in the Rich Forest," Sambor Prei Kuk, a lesser-known Cambodian UNESCO World Heritage Site, officially pre-dating Angkor Wat, with precise statues, intricate stonework, and massive ear...

Unveiling El Fuerte de Samaipata: Bolivia’s Hidden Megalithic Mystery 19.05.2025

In this episode I explore the enigmatic El Fuerte deSamaipata, a massive carved rock hidden in Bolivia’s jungle, one of the largest rock carvings in the world! 🌄From intricate feline carvings and the a mysterious “UFO runway” - to a deep, unexplored Chincana tunnel, this UNESCO World Heritage Site raises big questions about its origins. Was it built by the Chané culture around 300 CE,as archaeolo...

Welcome to Secrets in Stone: Exploring Humanity's Oldest Enigmas 12.05.2025

Welcome to the premiere episode of Secrets in Stone! Join me, Cassie, as I introduce my new channel dedicated to exploring the mysteries of the world’s ancient megalithic sites. We’ll dive into their history, uncover fascinating facts, and explore what these sites reveal about our forgotten past. I’m here to spark your curiosity with fresh perspectives on humanity’s oldest mysteries. Subscribe and...

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