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

United States of America, Nevada, Rhyolite Ghost Town. Abandoned building in the Rhyolite Ghost Town in the Nevada Desert.

United States of America, Nevada, Rhyolite Ghost Town. Abandoned building in the Rhyolite Ghost Town in the Nevada Desert.

United States of America, Utah, Grafton Ghost Town. Abandoned building in an abandoned ghost town in Utah.

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, Grand Canyon National Park. Zoroaster Temple in the world famous Grand Canyon viewed from the North Rim.

United States of America, Arizona, Grand Canyon National Park. Zoroaster Temple in the world famous Grand Canyon viewed from the North Rim.

United States of America, Arizona, Grand Canyon National Park. Zoroaster Temple in the world famous Grand Canyon viewed from the North Rim.

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.