518K views · 14K reactions | The most chilling mysteries are still unsolved. Six new Unsolved Mysteries are launching October 19. | Netflix | Facebook

The Veryovkina Cave is the closest point to the center of the Earth accessible to humans. At approximately two thousand two hundred and twelve meters deep, it is the deepest cave in the world. In 2015, a group of explorers determined that the cave was deeper than previously thought, eventually reaching the record depth of two thousand two hundred and twelve meters, researchers also recorded an underground tunnel system extending over 6,000 meters. | Unsolved Mysteries & Paranormal Activities

This is not an Al image. This is a 220 million-year-old petrified log in Petrified Forest National Park in Arizona, USA. The park is known for its large deposits of petrified wood, which is wood that has been completely replaced by quartz crystals. | Unsolved Mysteries & Paranormal Activities