Water eroded Navajo Sandstone forms a slot canyon in Upper Antelope Canyon, Navajo Land, Arizona, United States of America, North America

Water eroded Navajo Sandstone forms a slot canyon in Upper Antelope Canyon, Navajo Land, Arizona, United States of America, North America

Water eroded Navajo Sandstone forms a slot canyon in Upper Antelope Canyon, Navajo Land, Arizona, United States of America, North America

Water eroded Navajo Sandstone forms a slot canyon in Upper Antelope Canyon, Navajo Land, Arizona, United States of America, North America

Water eroded Navajo Sandstone forms a slot canyon in Upper Antelope Canyon, Navajo Land, Arizona, United States of America, North America

Cracked Mereenie sandstone at King's Canyon, Northern Territory, Australia

Ripple marks preserved in the Mereenie sandstone at King's Canyon, Northern Territory, Australia

Ayers Rock, Uluru, Red Centre, Australia

The Olgas, Kata Tjuta, Red Centre, Northern Territory, Australia

Multi-coloured layers of Mereenie sandstone at King's Canyon, Northern Territory, Australia

Light on mountainous scenery in Graham Land in Wilhelmina Bay on the Antarctic Peninsular, which is one of the fastest warming places on the planet.

Retreating glaciers in Wilhelmina Bay off Graham Land on the Antarctic Peninsular, which is one of the fastest warming places on the planet.

Retreating glaciers in Wilhelmina Bay off Graham Land on the Antarctic Peninsular, which is one of the fastest warming places on the planet.

Retreating glaciers in Wilhelmina Bay off Graham Land on the Antarctic Peninsular, which is one of the fastest warming places on the planet.

Panigaccio is a type of round, unleavened bread, baked in a special terracotta and mica dish, called testo, red-heated over high heat in a bonfire or in a wood-burning oven. A batter of flour, water and salt is interposed between one text and another, to form a pile. It is typical of the Lunigiana land on the border between Liguria and Tuscany, Italy, Europe

Panigaccio is a type of round, unleavened bread, baked in a special terracotta and mica dish, called testo, red-heated over high heat in a bonfire or in a wood-burning oven. A batter of flour, water and salt is interposed between one text and another, to form a pile. It is typical of the Lunigiana land on the border between Liguria and Tuscany, Italy, Europe

Panigaccio is a type of round, unleavened bread, baked in a special terracotta and mica dish, called testo, red-heated over high heat in a bonfire or in a wood-burning oven. A batter of flour, water and salt is interposed between one text and another, to form a pile. It is typical of the Lunigiana land on the border between Liguria and Tuscany, Italy, Europe

Panigaccio is a type of round, unleavened bread, baked in a special terracotta and mica dish, called testo, red-heated over high heat in a bonfire or in a wood-burning oven. A batter of flour, water and salt is interposed between one text and another, to form a pile. It is typical of the Lunigiana land on the border between Liguria and Tuscany, Italy, Europe

Dried footprints across Deadvlei, Sossusvlei, Namib-Naukluft Park, Namibia

Shadow of a long dead acacia tree across Deadvlei, Sossusvlei, Namib-Naukluft Park, Namibia

Small yacht sailing past Eigg Island in the Scottish Inner Hebrides, Scotland

Lesser flamingo (Phoeniconaias minor) flying above sand dunes near Walvis Bay, Namibia

Side view of blue, curling wave.

Hawaii, Large blue, curling wave, mountain and beach in the background.

Hawaii, Oahu, North Shore; large green blue wave about to curl, mountains in background.

Hawaii, Oahu, North Shore; green wave curling with mist blowing off tip, beach in background

Bar of 71% percent cocoa organic dark chocolate form The Grenada Chocolate Company in colourful wrapper, Grenada, Caribbean