Six Fingers Falls in Ozark National Forest, northern Arkansas, USA

Six Fingers Falls in Ozark National Forest, northern Arkansas, USA

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The Call of the Wild, Swiftcurrent Lake in Glacier National Park, USA

The Call of the Wild, Swiftcurrent Lake in Glacier National Park, USA

Balsamroot flowers blooming in the valley, Grand Teton National Park, USA

Balsamroot flowers blooming in the valley, Grand Teton National Park, USA

Filbert Street in San Francisco, California, USA

Filbert Street in San Francisco, California, USA

Cathedral Rock in Coconino National Forest, Arizona, USA

Cathedral Rock in Coconino National Forest, Arizona, USA

Swampy area at Lake Woodruff National Wildlife Refuge, Florida, USA

Swampy area at Lake Woodruff National Wildlife Refuge, Florida, USA

The famous cable car and Alcatraz Island in San Francisco, USA

The famous cable car and Alcatraz Island in San Francisco, USA

Sunrise along the Knik River, Alaska, USA

Sunrise along the Knik River, Alaska, USA