The blue mountains in Australia at dusk. They really do look blue. No photoshop required other than a bit of an S curve and some sharpening. The area, about an hours drive from Sydney is bit like the Grand Canyon only covered in Eucalyptus trees. Its the microscopic droplets of the Eucalyptus oil in the air that turns long distance scenes so blue. Thus the name.
Hope you like the photo.
Thanks for looking.