Kilauea Caldera
Halema’uma’u, Hawai’i
Photo: Dave Boyle
Nagerhole National Park
India
Photo: Kalyan Varma
Dublon Island, Chuuk Lagoon
Federated States of Micronesia
Photo: Jennifer Davidson
Gustavus, Alaska
Photo: Sean Neilson
Escalante Creek
Dominguez-Escalante National Conservation Area, Colorado
Photo: Frank Weston
Caoshan Moonworld
Tainan, Taiwan
Photo: Rich Matheson
Pretty-faced wallaby
Brisbane, Queensland, Australia
Photo: Michael Snedic
Siskiyou Mountains, Oregon
Photo: Emily Mount
Black Bear Yosemite National Park, California
Photo: Christine White Loberg
Yellowstone National Park
Wyoming
Photo: Rich Kirchner
Bee-eater
Lahore, Pakistan
Photo: Atif Saeed
Forest Park
Portland, Oregon
Photo: Timothy Rains
Matilija poppy Ojai, California
Photo: Rich Reid
Barksdale Air Force Base
Louisiana
Photo: Jonathan Gunther
South Mesa Trail
Boulder, Colorado
Photo: Lauren Buchholz
Grumeti Reserves
Northern Tanzania
Photo: James Varden
Maungatautari Scenic Reserve
North Island, New Zealand
Photo: Neil Fitzgerald