Koryaksky volcano seen beyond walkers on crater rim of Avacha volcano, Kamchatka, East Siberia, Russia

Frozen Lake Selvallavatn and snow covered lava field, Iceland, Polar Regions

Cold lava after an eruption of Tolbachik volcano, Kamchatka, Russia, Eurasia

Cold lava after an eruption of Tolbachik volcano, Kamchatka, Russia, Eurasia

Tourists standing at a cold lava stream after an eruption of Tolbachik volcano, Kamchatka, Russia, Eurasia

Cold lava after an eruption of Tolbachik volcano, Kamchatka, Russia, Eurasia

Tourists standing at a cold lava stream after an eruption of Tolbachik volcano, Kamchatka, Russia, Eurasia

Cold lava after an eruption of Tolbachik volcano, Kamchatka, Russia, Eurasia

West panorama view from a lava field on the side of Humphrey's Peak near Flagstaff in the Coconino National Forest, Arizona, United States of America, North America

Cold lava walls in the Craters of the Moon National Park, Idaho, United States of America, North America

Walkway through cold lava in the Craters of the Moon National Park, Idaho, United States of America, North America

Walkway through cold lava in the Craters of the Moon National Park, Idaho, United States of America, North America

Walkway through cold lava in the Craters of the Moon National Park, Idaho, United States of America, North America

Walkway through cold lava in the Craters of the Moon National Park, Idaho, United States of America, North America

Horsetail Falls in Yosemite National Park, Yosemite, California, United States

Photographer at Diamond Beach, icebergs at the black lava beach, near glacier lagoon Joekulsarlon, Vatnajoekull National Park, Hornafjoerour, Southern Iceland, Iceland, Europe

Ash cloud of the Eyjafjallajoekull volcano, steam plume from the lava flow in Gigjoekull glacier tongue, and exit point of the previous flood, Gigjoekull, Iceland, Europe

Hand holding piece of cold lava, vulcano in background. Fogo. Cabo Verde. Africa

Cold lava of vulcano on Fogo. Cabo Verde. Africa

Diamond Beach, icebergs on black lava beach, at Joekulsarlon glacier lagoon, sunrise, Vatnajoekull National Park, Hornafjoerour, South Iceland, Iceland, Europe

Diamond Beach, icebergs on black lava beach, at Joekulsarlon glacier lagoon, sunrise, Vatnajoekull National Park, Hornafjoerour, South Iceland, Iceland, Europe

Diamond Beach, icebergs on black lava beach, at Joekulsarlon glacier lagoon, sunrise, Vatnajoekull National Park, Hornafjoerour, South Iceland, Iceland, Europe

Diamond Beach, icebergs on black lava beach, at Joekulsarlon glacier lagoon, sunrise, Vatnajoekull National Park, Hornafjoerour, South Iceland, Iceland, Europe

Diamond Beach, icebergs on black lava beach, at Joekulsarlon glacier lagoon, sunrise, Vatnajoekull National Park, Hornafjoerour, South Iceland, Iceland, Europe

Chunks of ice on black lava sand beach at sunrise, lake Jokulsarlon, Vik, Iceland, Europe

Icebergs on black volcanic beach. Beach of the north atlantic near the glacial lagoon Joekulsarlon and glacier Breithamerkurjoekull in the Vatnajoekull NP.europe, northern europe, iceland, February

Lava field Dimmuborgir during winter near lake Myvatn in the highlands of Iceland in deep snow. View towards south into the central highland wiht mount Sellandafjall . europe, northern europe, iceland, February

Landscape at lake Kleifarvatn on Reykjanes peninsula during winter Northern Europe, Scandinavia, Iceland, February

Lava fields in the highlands of Iceland during winter. europe, northern europe, scandinavia, iceland, February

icebergs on black volcanic beach. Beach of the north atlantic near the glacial lagoon Joekulsarlon and glacier Breithamerkurjoekull in the Vatnajoekull NP.europe, northern europe, iceland, February

icebergs on black volcanic beach. Beach of the north atlantic near the glacial lagoon Joekulsarlon and glacier Breithamerkurjoekull in the Vatnajoekull NP.europe, northern europe, iceland, February

Lava fields in the highlands of Iceland during winter. europe, northern europe, scandinavia, iceland, February

landscape in the highland of Iceland during winter close to lake Myvatn. europe, northern europe, iceland, February

Lava field Dimmuborgir during winter near Myvatn, Iceland. Lava field Dimmuborgir during winter near lake Myvatn in the highlands of Iceland in deep snow. View towards south into the central highland wiht mount Sellandafjall . europe, northern europe, iceland, February