Unfortunately, the bombs activate a giant underwater volcano, which quickly engulfs the two monsters.

To the north was a giant volcano spewing out red liquid.

One surprising and controversial conclusion from this synthesis of ideas is that the Tharsis region may be a single giant volcano.

We relaxed at the refuge for half an hour, then began to slide our way down the giant volcano.

Sometimes it's hard to know what to worry about - killer asteroids or giant volcanoes.

There are instead, craters, giant volcanoes and enormous canyons.

But the gods of Mexico merely slept, like the giant volcano, Popocatepetl.

Oahu was born four million years ago as two giant volcanoes.

Patel and Naguib were enraptured by their study of the giant volcanoes.

The giant volcanoes thrust their massive cones high into the thin atmosphere.