Silhouette of the Bass Harbour Head working lighthouse at sunset in Acadia National Park Maine.
Quiver tree at sunset in Kokerboom Forest, Namibia.
Wildebeest silhouette at sunset in the Serengeti National Park Tanzania.
Aurora in night sky above Chena Hot Springs near Fairbanks Alaska.
Aurora photographed on tundra in Wapusk National Park in Manitoba, Canada.
Digital Manipulation of silhouette of a Quiver Tree at Sunset in the Kookerboom Forest, Keetmanshoop, Namibia.
Composite image of a polar bear silhouette at sunset and aurora reflected in Beaufort Sea, Kaktovik Alaska.
Grizzly bear silhouette at sunrise walking across a dew-covered field in Lake Clark National Park Alaska.
