Mammoth Cave National Park Action & adventure, Animal, Castles & palaces, Modern architecture, People + Winter pictures

• Kentucky
• Edmonson County
• USA
• North America
• World

Journey toward the center of the earth as you discover the world’s largest known cave system, one of Kentucky’s great hidden secrets.

Journey toward the center of the earth as you discover the world’s largest known cave system, one of Kentucky’s great hidden secrets.