England, County Durham, Cow Green Reservoir. Aerial photo of Cow Green Reservoir, built to supply water to the industries of Teesside.

Germany, Berlin, Berlin TV Tower. The Berlin TV Tower and surrounding Alexanderplatz photographed at dusk.

Germany, Berlin, Berlin TV Tower. The Berlin TV Tower and surrounding Alexanderplatz photographed at dusk.

Germany, Berlin, Berlin TV Tower. The Berlin TV Tower and surrounding Alexanderplatz photographed at dusk.

Germany, Berlin, Potsdamer Platz. Skyscrapers at Potsdamer Platz in the city of Berlin.

Germany, Berlin, Potsdamer Platz. Skyscrapers at Potsdamer Platz in the city of Berlin.

Germany, Berlin, Potsdamer Platz. Skyscrapers at Potsdamer Platz in the city of Berlin.

Germany, Berlin, Potsdamer Platz. Skyscrapers at Potsdamer Platz in the city of Berlin.

Germany, Berlin, Potsdamer Platz. Skyscrapers at Potsdamer Platz in the city of Berlin.

United States of America, Utah, Zion National Park. Checkerboard Mesa, an unusual feature of the popular Zion National Park.

United States of America, Utah, Zion National Park. Checkerboard Mesa, an unusual feature of the popular Zion National Park.

United States of America, Utah, Zion National Park. Checkerboard Mesa, an unusual feature of the popular Zion National Park.

United States of America, Utah, Zion National Park. Early morning light on the geological features of the Zion National Park.

United States of America, Utah, Zion National Park. Dawn light hits the mountain known as 'The Watchman' in the Zion National Park.

United States of America, Utah, Zion National Park. Dawn light hits the mountain known as 'The Watchman' in the Zion National Park.

United States of America, Utah, Zion National Park. Dawn light hits the mountain known as 'The Watchman' in the Zion National Park.

United States of America, Arizona, Monument Valley Tribal Park. The iconic landscape of the sandstone buttes of the Monument Valley Tribal Park located in the Navajo Nation straddling the Arizona / Utah border.

United States of America, Arizona, Monument Valley Tribal Park. The iconic landscape of the sandstone buttes of the Monument Valley Tribal Park located in the Navajo Nation straddling the Arizona / Utah border.

United States of America, Arizona, Monument Valley Tribal Park. The iconic landscape of the sandstone buttes of the Monument Valley Tribal Park located in the Navajo Nation straddling the Arizona / Utah border.

United States of America, Arizona, Monument Valley Tribal Park. The iconic landscape of the sandstone buttes of the Monument Valley Tribal Park located in the Navajo Nation straddling the Arizona / Utah border.

United States of America, Arizona, Monument Valley Tribal Park. The iconic landscape of the sandstone buttes of the Monument Valley Tribal Park located in the Navajo Nation straddling the Arizona / Utah border.

United States of America, Arizona, Monument Valley Tribal Park. The iconic landscape of the sandstone buttes of the Monument Valley Tribal Park located in the Navajo Nation straddling the Arizona / Utah border.

United States of America, Arizona, Monument Valley Tribal Park. The iconic landscape of the sandstone buttes of the Monument Valley Tribal Park located in the Navajo Nation straddling the Arizona / Utah border.

United States of America, Arizona, Monument Valley Tribal Park. The iconic landscape of the sandstone buttes of the Monument Valley Tribal Park located in the Navajo Nation straddling the Arizona / Utah border.

United States of America, Arizona, Monument Valley Tribal Park. The iconic landscape of the sandstone buttes of the Monument Valley Tribal Park located in the Navajo Nation straddling the Arizona / Utah border.

United States of America, Arizona, Monument Valley Tribal Park. The iconic landscape of the sandstone buttes of the Monument Valley Tribal Park located in the Navajo Nation straddling the Arizona / Utah border.

United States of America, Arizona, Monument Valley Tribal Park. The iconic landscape of the sandstone buttes of the Monument Valley Tribal Park located in the Navajo Nation straddling the Arizona / Utah border.

United States of America, Arizona, Monument Valley Tribal Park. The iconic landscape of the sandstone buttes of the Monument Valley Tribal Park located in the Navajo Nation straddling the Arizona / Utah border.

United States of America, Arizona, Monument Valley Tribal Park. The iconic landscape of the sandstone buttes of the Monument Valley Tribal Park located in the Navajo Nation straddling the Arizona / Utah border.

United States of America, Arizona, Monument Valley Tribal Park. The iconic landscape of the sandstone buttes of the Monument Valley Tribal Park located in the Navajo Nation straddling the Arizona / Utah border.

United States of America, Arizona, Monument Valley Tribal Park. The iconic landscape of the sandstone buttes of the Monument Valley Tribal Park located in the Navajo Nation straddling the Arizona / Utah border.

United States of America, Arizona, Monument Valley Tribal Park. The iconic landscape of the sandstone buttes of the Monument Valley Tribal Park located in the Navajo Nation straddling the Arizona / Utah border.

United States of America, Arizona, Monument Valley Tribal Park. The iconic landscape of the sandstone buttes of the Monument Valley Tribal Park located in the Navajo Nation straddling the Arizona / Utah border.

United States of America, Arizona, Monument Valley Tribal Park. The iconic landscape of the sandstone buttes of the Monument Valley Tribal Park located in the Navajo Nation straddling the Arizona / Utah border.

United States of America, Arizona, Monument Valley Tribal Park. The iconic landscape of the sandstone buttes of the Monument Valley Tribal Park located in the Navajo Nation straddling the Arizona / Utah border.

United States of America, Arizona, Monument Valley Tribal Park. The iconic landscape of the sandstone buttes of the Monument Valley Tribal Park located in the Navajo Nation straddling the Arizona / Utah border.

United States of America, Arizona, Monument Valley Tribal Park. The iconic landscape of the sandstone buttes of the Monument Valley Tribal Park located in the Navajo Nation straddling the Arizona / Utah border.

United States of America, Utah, Bryce Canyon National Park. Hoodoos dominate the landscape of the Bryce Amphitheater in the Bryce Canyon National Park.

United States of America, Utah, Bryce Canyon National Park. Hoodoos dominate the landscape of the Bryce Amphitheater in the Bryce Canyon National Park.

United States of America, Utah, Bryce Canyon National Park. Hoodoos dominate the landscape of the Bryce Amphitheater in the Bryce Canyon National Park.

United States of America, Utah, Bryce Canyon National Park. Hoodoos dominate the landscape of the Bryce Amphitheater in the Bryce Canyon National Park.

United States of America, Utah, Bryce Canyon National Park. Hoodoos dominate the landscape of the Bryce Amphitheater in the Bryce Canyon National Park.

United States of America, Utah, Bryce Canyon National Park. Hoodoos dominate the landscape of the Bryce Amphitheater in the Bryce Canyon National Park.

United States of America, Utah, Bryce Canyon National Park. Hoodoos dominate the landscape of the Bryce Amphitheater in the Bryce Canyon National Park.

United States of America, Utah, Bryce Canyon National Park. Hoodoos dominate the landscape of the Bryce Amphitheater in the Bryce Canyon National Park.

United States of America, Utah, Bryce Canyon National Park. Hoodoos dominate the landscape of the Bryce Amphitheater in the Bryce Canyon National Park.

United States of America, Utah, Bryce Canyon National Park. Hoodoos dominate the landscape of the Bryce Amphitheater in the Bryce Canyon National Park.

United States of America, Utah, Bryce Canyon National Park. Hoodoos dominate the landscape of the Bryce Amphitheater in the Bryce Canyon National Park.

United States of America, Utah, Bryce Canyon National Park. Hoodoos dominate the landscape of the Bryce Amphitheater in the Bryce Canyon National Park.

United States of America, Utah, Bryce Canyon National Park. Hoodoos dominate the landscape of the Bryce Amphitheater in the Bryce Canyon National Park.