Thríhnúkagígur Volcano in Iceland is a unique and safely dormant volcano that last erupted 4,500 years ago, leaving behind the only accessible lava chamber on Earth. The volcano's crater, Þríhnúkagígur, is massive and can fit the Statue of Liberty inside. Visitors are lowered into the volcano using a custom-built lift system, where they can explore the colorful rock formations and learn about the geological history of the area. Base Camp at the volcano's base offers cozy amenities and delicious Icelandic lamb or vegetable soup. It's a once-in-a-lifetime experience to journey to the center of the Earth!