Volcanoes

The spot where the namesake of the Douglas fir met his mysterious end on a Hawaiian volcano.

This rare volcano spews the strangest and (literally) coolest lava in the world.

A violent name for a violent volcano.

A perfectly circular lake is formed by the crater of an ancient underwater volcano.

A 70-foot-deep ice cave formed by lava from Mt. Fuji on the edge of Japan's "Suicide Forest." 

Formerly secret, precariously perched boulders.

Burping, gurgling geothermal mud pots by the Salton Sea.

The "world's smallest volcano" has been used to store meals and dispose of dead bodies.

The platform atop this verdant volcano was built with the help of a royal elephant.

A winding, blood-red tunnel of hardened lava navigable by foot.

A steaming, boiling hellscape sources Hokkaido's thermal baths.

This South Pacific volcano has been blowing its stack for over 800 years and is said to be home to a cult leader waiting to be reborn.