<a href="http://www.airpano.com/"target="external">Air Pano</a> creates unique aerial views of well-known locations all over the world. In honor of <a href="https://www.earthhour.org/"target="external">Earth Hour</a>, a lights-off event to create awareness of environmental issues, we are showcasing some of Air Pano's images. Here, The Great Barrier Reef is seen in Australia.

Courtesy AirPano