Mt Cotopaxi is the highest active volcano in Ecuador and one of the highest in the world.

BBC: Scaling the Ecuadorean Andes

Japan's near-symetrical snow-topped volcano, Mount Fuji, looks likely to become a Unesco World Heritage site, officials say.

BBC: Japan's Mount Fuji 'set for Unesco listing'

We would reach it together, young and old, drawn from around the world, all of us passing through the gates at the top, standing along the lip of this volcano, our backs to the once-molten crater.

WSJ: Tom Rob Smith Climbs Mount Fuji | Traveler's Tale