It is the most active volcanic center in the South Aegean Volcanic Arc, though what remains today is largely a water-filled caldera. The island is the site of the "Minoan eruption", one of the largest volcanic eruptions in recent pre-history when it erupted some 3,500 years ago, at the height of the Minoan civilization. According to a theory, the volcanic eruption may have indirectly led to the collapse of the Minoan civilization on the island of Crete due to a gigantic tsunami.
Denali is the highest mountain peak in North America, with a summit elevation of 20,237 feet (6,168 m) above sea level. At some 18,000 feet (5,500 m), the base to peak rise is considered the largest of any mountain situated entirely above sea level. Located in the Alaska Range in the interior of US state of Alaska, it is the centerpiece of Denali National Park and Preserve. It's the 3rd highest of the Seven Summits.