United States of America, California, Yoesmite National Park. The iconic view of Half Dome viewed from Glacier Point at sunset.

United States of America, California, Yoesmite National Park. The iconic view of Half Dome viewed from Glacier Point at sunset.

United States of America, California, Yoesmite National Park. The iconic view of Half Dome viewed from Glacier Point at sunset.

United States of America, California, Yoesmite National Park. The iconic view of Half Dome viewed from Glacier Point at sunset.

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, Ariziona, Petrified Forest National Park. The surreal, colourful landscape of the Painted Desert in the Petrified Forest National Park.

United States of America, Ariziona, Petrified Forest National Park. The surreal, colourful landscape of the Painted Desert in the Petrified Forest National Park.

United States of America, Ariziona, Petrified Forest National Park. The surreal, colourful landscape of the Painted Desert in the Petrified Forest National Park.

United States of America, Ariziona, Petrified Forest National Park. The surreal, colourful landscape of the Painted Desert in the Petrified Forest National Park.

United States of America, Ariziona, Petrified Forest National Park. The surreal, colourful landscape of the Painted Desert in the Petrified Forest National Park.

United States of America, Ariziona, Petrified Forest National Park. The surreal, colourful landscape of the Painted Desert in the Petrified Forest National Park.

United States of America, Ariziona, Petrified Forest National Park. The surreal, colourful landscape of the Painted Desert in the Petrified Forest National Park.

United States of America, Ariziona, Petrified Forest National Park. The surreal, colourful landscape of the Painted Desert in the Petrified Forest National Park.

United States of America, Ariziona, Petrified Forest National Park. The surreal, colourful landscape of the Painted Desert in the Petrified Forest National Park.

United States of America, Ariziona, Petrified Forest National Park. The surreal, colourful landscape of the Painted Desert in the Petrified Forest National Park.

United States of America, Ariziona, Petrified Forest National Park. The surreal, colourful landscape of the Painted Desert in the Petrified Forest National Park.

United States of America, Ariziona, Petrified Forest National Park. The surreal, colourful landscape of the Painted Desert in the Petrified Forest National Park.

United States of America, Ariziona, Petrified Forest National Park. The surreal, colourful landscape of the Painted Desert in the Petrified Forest National Park.

United States of America, Ariziona, Petrified Forest National Park. The surreal, colourful landscape of the Painted Desert in the Petrified Forest National Park.

United States of America, Ariziona, Petrified Forest National Park. The surreal, colourful landscape of the Painted Desert in the Petrified Forest National Park.

United States of America, Ariziona, Petrified Forest National Park. The surreal, colourful landscape of the Painted Desert in the Petrified Forest National Park.

United States of America, Ariziona, Petrified Forest National Park. The surreal, colourful landscape of the Painted Desert in the Petrified Forest 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.