Aerial Photography is a great way for interesting shots that can be manipulated into different techniques by using a fisheye lens or making the image you are taking a photo of, smaller than it actually appears. Aerial photography is great for landscapes and cities. Certain shots may make the image seem as its smaller, some may increase the size of the aerial view.
As you can see, these shots were taken from a high enough elevation to capture the entire shot and all that lies within the picture. These images are in focus even at a high angle. High aperture, low shutter speed allowing for more light to come into the camera, as well as an increased depth of field.