• Home
  • Chemistry
  • Astronomy
  • Energy
  • Nature
  • Biology
  • Physics
  • Electronics
  • Crazy Horse Memorial: The Granite Behind the Monument
    The Crazy Horse Memorial is being carved out of granite.

    This is why it's taking so long to complete. Granite is a very hard rock, making it difficult to carve. The project was started in 1948 and is expected to take several lifetimes to finish.

    Science Discoveries © www.scienceaq.com