Mount St. Helens, USA (16/20)

Located in Washington State, Mount St. Helens erupted in 1980 in one of the most significant volcanic events in U.S. history, dramatically altering the surrounding landscape. Today, visitors can explore the Mount St. Helens National Volcanic Monument, where the surrounding area remains a testament to the volcano’s destructive force. Hike up to the crater rim or visit the observatories for stunning views of the active volcano and the dramatic blast zone.