Silhouette of palm trees on the beach at sunset, Mission Bay Park, San Diego, California, USA

Silhouette of palm trees on the beach at sunset, Mission Bay Park, San Diego, California, USA

Silhouette of palm trees at sunrise, Black Point Wildlife Drive, Merritt Island National Wildlife Refuge, Florida, USA

Trees in front of Lambert Dome, Yosemite National Park, California, USA

Reflection of trees in a river at dawn, Connecticut River, Ferry Park, Rocky Hill, Connecticut, USA

Lighthouse on the coast, New Haven Lighthouse, Lighthouse Point Park, New Haven, Connecticut, USA

Lighthouse on the coast, New Haven Lighthouse, Lighthouse Point Park, New Haven, Connecticut, USA

Pebbles at the lakeside, Lake Superior, Tettegouche State Park, Minnesota, USA

Pier on the bank of a river, St. John's River, Ed Stone Park, Florida, USA

Silhouette of boats on a lake, Salt Run, Lighthouse Park, St. Augustine, Florida, USA

Pebbles at the lakeside, Lake Superior, Tettegouche State Park, Minnesota, USA

Sunset over the sea, Parker Island, Crystal River National Wildlife Refuge, Florida, USA

Spanish Moss (Tillandsia usneoides) plants hanging on Slash pine (Pinus elliotti) trees in a forest, Myakka River State Park, Florida, USA

Snow covered tree in a canyon, Dead Horse Point State Park, Utah, USA

River passing through a canyon, Colorado River, Dead Horse Point State Park, Utah, USA

River passing through a canyon, Colorado River, Dead Horse Point State Park, Utah, USA

Lightning over a lighthouse, Cape May Lighthouse, Cape May Point State Park, New Jersey, USA

Landscape with rock formations in the background, Yaki Point, South Rim, Grand Canyon National Park, Arizona, USA

Tree on a cliff, Moran Point, South Rim, Grand Canyon National Park, Arizona, USA

Car on a highway, Florida State Road 780, Sarasota County, Florida, USA

River passing through a canyon, Colorado River, Dead Horse Point State Park, Utah, USA

High angle view of rock formations, Pima Point, South Rim, Grand Canyon National Park, Arizona, USA

Silhouette of Great Blue heron (Ardea herodias) pair courting on tree, Venice Rookery, Venice, Florida, USA

Low angle view of two female rock climbers on an overhanging cliff, Taft Point, Yosemite National Park, California, USA

Silhouette of a tree, Emerson Point Park, Florida, USA