Stevens Arch, near the mouth of Coyote Gulch, Utah.

Morning sun spilling into Forney Creek, at Great Smoky Mountains National Park, Tennessee

Stormy dawn on the Kalapana lava flows, HI.

Volcano Anak Krakatau

Tatry mountains, Poland

North Cape seen from Knivskjellodden, Norway

Son Doong Cave, Vietnam. The largest cave in the world.

Mount Taranaki, New Zealand

Appalachian Trail, Smoky Mountains, Tennessee

Utena County, Lithuania

Jasper National Park, Alberta, Canada

An ancient tree on the rim of Oregon's Crater Lake at twilight

Admirable rock formations in Varna, Bulgaria.