The Rock Cycle

GEOLOGY is the study of the Earth and what it’s made of, including its natural history. This history is recorded in rocks and it describes how the earth is always changing and reshapes over time. The Rock Cycle highlights how three main… Read More ›

A Citadel in the Sky

Hiram Bingham announced the discovery of Machu Picchu to the world on July 24, 1911. Since its discovery over 100 years ago, historians and archaeologists continue to search for clues that could explain the reason the Inca people built a… Read More ›