Adélie penguins on an iceberg
Antarctica
Green sea turtle
San Diego, California
Sparks Lane in Cades Cove
Great Smoky Mountains National Park, Tennessee
Grand Prismatic Spring at sunrise
Yellowstone National Park, Wyoming
The Ring of Brodgar
Orkney, Scotland
Medieval city walls
Ávila, Spain
American black bear cub in spring
Shenandoah National Park, Virginia
