1) The world's largest volcano, Mauna Loa in Hawaii, is also one of the most active.

2) Elvis Presley, often referred to as the "King of Rock and Roll," has sold over one billion records worldwide.

3) The world's first speeding ticket was issued in 1902 to a motorist who was driving at the astonishing speed of 45 miles per hour (72 km/h).

4) The Earth's core is primarily composed of iron and nickel and is as hot as the surface of the sun.