But Mauna Kea has a much more interesting history than what we are doing on top it today ... Mauna Kea, which is a dormant ...

But in the distant past, it was a tumultuous planet that spawned the largest volcano in the solar system. Olympus Mons might not look impressive in the top-down photos you've seen in the past ...

Composite volcanoes are the most common type of volcano. They can have violent eruptions and can grow bigger as layers of thick lava and ash harden on top of each other. Mount Etna in Sicily ...

Aside from the view ... also advised wearing layers and bringing a jacket or other warm clothing as it can get chilly due to the elevation. The main entrance to Irazu Volcano National Park ...

Arenal Volcano ... though the quality of the view depends heavily on the weather. One hiker commented that they could see the smoke coming from the top on their clear day visit.

Satellite view of Mount Spurr in Alaska. Gallo Images via Getty Images Those increased emissions are a result of magma that has intruded into the Earth’s crust beneath the summit of the volcano ...