For the adventurous travelers looking for unique destinations, lesser-known volcanic terrains make for an enthralling experience ...

Could a volcanic eruption blow ash out of the Earth’s atmosphere? Arleigh Pudlick, Becker, Minnesota No volcano has come close. The Earth’s atmosphere rises about 300 miles, in six layers.

This is the first North Korean site that has made the list, joining more than 200 geoparks across 49 countries ...