Mauna Kea When you think of the tallest mountains, instinctively, Mount Everest comes to mind. But here's a shocker: Mauna ...

This giant volcano is not only huge ... is more than two and a half times taller than Mount Everest, the highest mountain on Earth. If you could place Everest at the bottom of Olympus Mons ...

Mauna Kea is actually an inactive volcano on the big island of Hawaii ... then you'll have technically scaled the tallest mountain on Earth. You just majorly cheated by starting more than half ...