The Nut, Circular Head, Stanley, Tasmania, Australia, Pacific

Saint-Michel d'Aiguilhe Church, Aiguilhe, Auvergne-Rhone Alpes, France, Europe

Avacha volcano, lava plug formed in crater in 1991, Koryaksky volcano beyond, Kamchatka, East Siberia, Russia

Bartolome Island with Pinnacle Rock, a volcanic plug, to the right, the location featured in the 2003 film Master and Commander, Galapagos islands, UNESCO World Heritage Site, Ecuador, South America

Bartolome Island with Pinnacle Rock, a volcanic plug, to the right, Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America

Bartolome Island with Pinnacle Rock, a volcanic plug, to the right, a location in the 2003 film Master and Commander, Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America

Skye's best known landmark, The Old Man of Storr, the 55m volcanic plug spire in swirling clouds below the Trotternish Ridge in the North East, The Old Man of Storr, Trotternish, Portree, Skye, Inner Hebrides, Scotland, United Kingdom, Europe

Pinnacle Rock, a volcanic plug on Bartolome Island, one of the most spectacular features of the Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America

Pinnacle Rock, a volcanic plug on Bartolome Island, one of the most spectacular features of the Galapagos islands, UNESCO World Heritage Site, Ecuador, South America

A view of the Pitons near Soufriere in St. Lucia, Windward Islands, West Indies, Caribbean, Central America

A view of the Pitons near Soufriere in St. Lucia, Windward Islands, West Indies, Caribbean, Central America

Looking south towards Lake Helen from dormant 10,457ft Lassen Peak, the world's largest plug-dome volcano, in Lassen Volcanic National Park, an area of volcanic activities and features, Lassen Volcanic Park, Northern California, California, United States of America (USA), North America

Dormant 10,457ft Lassen Peak, the world's largest plug-dome volcano, in Lassen Volcanic National Park, an area of volcanic activity and features, Lassen Volcanic Park, Northern California, California, United States of America (USA), North America

The barren rocky plateau of Jebel Sirwa at 10,000 feet in the Anti Atlas mountains of Morocco, North Africa, Africa

Lake Helen and the dormant 10,457ft Lassen Peak, the world's largest plug-dome volcano, in Lassen Volcanic National Park, an area of volcanic activities and features, Lassen Volcanic Park, Northern California, California, USA

Lake Helen and the dormant 10,457ft Lassen Peak, the world's largest plug-dome volcano, in Lassen Volcanic National Park, an area of volcanic activities and features, Lassen Volcanic Park, Northern California, California, USA

Manzanita Lake and the dormant 10,457ft Lassen Peak, the world's largest plug-dome volcano, in Lassen Volcanic National Park, an area of volcanic activities and features, Lassen Volcanic Park, Northern California, California, United States of America (USA), North America

Storm clouds gather over Shiprock, New Mexico. The rising suns illuminates this sacred rock of Navajo people, Shiprock, New Mexico, United States of America

Clearing storm clouds over Shiprock in the high-desert plain of the Navajo Nation in New Mexico, USA, Shiprock, New Mexico, United States of America

Val des Pitons Tourists sunbathing on the sun deck beside the pool at Ladera Spa Resort Hotel overlooking Petit Piton volcanic plug and Jalousie beach, Soufriere, St Lucia

Val des Pitons The white sand beach at the Jalousie Plantation Resort Hotel with the volcanic plug of Petit Piton beyond and tourists on sunbeds beneath palapa sun shades, Soufriere, St Lucia

Soufriere beach lined with coconut palm trees with the town and the volcanic plug mountain of Petit Piton beyond, Soufriere, St Lucia

Soufriere Beach lined with coconut palm trees with the town and the volcanic plug mountain of Petit Piton beyond, Soufriere, St Lucia

Fishing boats on the beach lined with coconut palm trees with the town and the volcanic plug mountain of Petit Piton beyond, Soufriere, St Lucia

Fishing boats on the beach lined with coconut palm trees with the town and the volcanic plug mountain of Petit Piton beyond, A fishing boat in the foreground with the words Help Me Lord written on the bow, Soufriere, St Lucia

Val des Pitons Tourists sunbathing on the sun deck beside the pool at Ladera Spa Resort Hotel overlooking Petit Piton volcanic plug and Jalousie beach, Soufriere, St Lucia

Fishing boats on the beach lined with coconut palm trees with the town and the volcanic plug mountain of Petit Piton beyond, Soufriere, St Lucia

Val des Pitons The volcanic plug of Petit Piton and the lush valley seen from the sun deck of the Ladera Spa Resort Hotel, Soufriere, St Lucia

Soufriere Beach lined with coconut palm trees with the town and the volcanic plug mountain of Petit Piton beyond, Soufriere, St Lucia

Fishing boats on the beach lined with coconut palm trees with the town and the volcanic plug mountain of Petit Piton beyond, Soufriere, St Lucia