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Toxic pond formed from runoff of mine tailings at an abandoned copper mine in the Prescott National Forest near Perkinsville, Arizona, United States of America, North America

Clifftop panorama of Oak Creek in Slide Rock State Park north of Sedona, Arizona, United States of America, North America

A dry waterfall sandstone ledge on a trail to Steamboat Rock, Coconino National Forest, Sedona, Arizona, United States of America, North America

Rocky shore of Watson Lake which has lost much water due to the drought, the gray rock was originally submerged, Arizona, United States of America, North America

Rocky lagoon in Watson Lake along Lakeshore Trail, gray rock shows how much water volume was lost due to the drought, Arizona, United States of America, North America

Man and woman in love embracing looking at the crystal sea, Myrtos beach, Kefalonia, Ionian Islands, Greek Islands, Greece, Europe

Lightning striking the Sinking Ship at Grand Canyon, viewed from the Buggeln Hill summit, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

A monsoon storm rolling across Grand Canyon between Zuni Point and Papago Point, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

A dry waterfall in Crystal Creek below Crystal Mesa west of Hamilili Point in Petrified Forest National Park, Arizona, United States of America, North America

East slopes of Haystack Mesa in Petrified Forest National Park, Arizona, United States of America, North America

East slopes of Haystack Mesa in Petrified Forest National Park, Arizona, United States of America, North America

Steel picnic table along the rim trail overlooking Grand Canyon South Rim off Hermit Road halfway between Monument Creek Vista and The Abyss, Grand Canyon, Arizona, United States of America, North America

The paved Greenway trail west of Monument Creek Vista with a sign warning cyclists of a steep gradient ahead, Grand Canyon, Arizona, United States of America, North America

Storm approaching Shoshone Point on the South Rim, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

Adult black-browed albatross (Thalassarche melanophrys), pair in courtship display at nesting site on New Island, Falklands, South America

Stairs up to the seconnd floor in the historic Desert View Watchtower at Grand Canyon South Rim, artwork created by Fred Kobotie in 1933, now owned by the National Park Service, UNESCO World Heritage Site, Arizona, United States of America, North America

Southwest view of Grand Canyon South Rim Arizona from the top floor of the historic Watchtower, taken through glass window, Grand Canyon, UNESCO World Heritage Site, Arizona, United States of America, North America

The direction sign for the Tusayan Museum and ruins at Grand Canyon South Rim, Arizona, United States of America, North America

The observation deck of the Desert View Watchtower at Grand Canyon South Rim, UNESCO World Heritage Site, Arizona, United States of America, North America

The upper half of the Desert View Watchtower viewed from the observation deck at Grand Canyon South Rim, UNESCO World Heritage Site, Arizona, United States of America, North America

The Kiva of the ancient Tusayan Ruins at Grand Canyon South Rim, UNESCO World Heritage Site, Arizona, United States of America, North America

Cliff views south of Naji Point on the North Rim of Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

Naji Ravine just south of Naji Point on the North Rim of Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

Cliff views from the edge of Naji Point on the North Rim of Grand Canyon, with Cape Final in the distance, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

Traditional Japanese Marriage Ritual at Itsukushima Shinto Shrine on Miyajima Island, UNESCO World Heritage Site, Hiroshima Prefecture, Honshu, Japan, Asia

The Little Teepees on the north side of Haystack Mesa in Petrified Forest National Park, Arizona, United States of America, North America

View of Anvil Hill and Crystal Butte from the summit of Crystal Mesa west of Hamilili Point in Petrified Forest National Park, Arizona, United States of America, North America

Goblin Garden west of Hamilili Point in Petrified Forest National Park, Arizona, United States of America, North America

Anvil Hill west of Hamilili Point in Petrified Forest National Park, Arizona, United States of America, North America

Cape Royal Road winding through Fuller Canyon at Grand Canyon North Rim, UNESCO, Arizona, United States of America

Greenland Lake reduced to a mud hole, Grand Canyon North Rim, UNESCO, Arizona, United States of America

Festival of Light (Inti Raymi festival) Cochas Community, Angochagua Parochia, Imbabura Province, Ecuador

View of Roaring Springs Canyon along the North Kaibab Trail at Grand Canyon North Rim, UNESCO, Arizona, United States of America

The 18th switchback along the North Kaibab Trail at Grand Canyon North Rim, UNESCO, Arizona, United States of America

Grand Canyon view at sunset from the west side of Moran Point, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

Pieces of petrified wood on hills overlooking Dead Wash, Petrified Forest National Park, Arizona, United States of America

Red hills of bentonite clay overlooking Dead Wash in Petrified Forest National Park, Arizona, United States of America

Pieces of petrified wood on hills overlooking Dead Wash, Petrified Forest National Park, Arizona, United States of America

Boulder pile in a valley leading to Dead Wash, Petrified Forest National Park, Arizona, United States of America

An old Model-T placed as a marker for the Route 66 Road Alignment in Petrified Forest National Park, Arizona, United States of America

Boundary gate and cattle-proof fence between Coconino National Forest and Wet Beaver Creek Wilderness, Arizona, United States of America

The fire watchtower on the summit of Apache Maid Mountain, Coconino National Forest, Arizona, United States of America

An information sign on the summit of Apache Maid Mountai, Coconino National Forest, Arizona, United States of America

Fisheye view from below the fire watchtower on summit of Apache Maid Mountain, Coconino National Forest, Arizona, United States of America

View from second deck of fire watchtower on summit of Apache Maid Mountain, Coconino National Forest, Arizona, United States of America

Road to the summit of Apache Maid Mountain, Coconino National Forest, Arizona, United States of America

View of the lake created by the historic Bainbridge Steel Dam near Ash Fork, Kaibab National Forest, Arizona, United States of America

View of the lake created by the historic Bainbridge Steel Dam near Ash Fork, Kaibab National Forest, Arizona, United States of America

Old water tank perched on a cliff overlooking the T-Bar Ranch Homestead in the Coconino National Forest, Arizona, United States of America

Basalt boulders and cliffs in a section of Johnson Canyon halfway between the Bainbridge Steel Dam and Stone Dam near Ash Fork Arizona in the Kaibab National Forest.

Basalt boulders and cliffs in a section of Johnson Canyon halfway between the Bainbridge Steel Dam and Stone Dam near Ash Fork Arizona in the Kaibab National Forest.

View from below the north cliffs of Blue Mesa in Petrified Forest National Park, Arizona, United States of America, North America

View of Waldron Canyon southwest of Hermit Canyon in winter, accessible via Hermit Trail, Grand Canyon, Arizona, United States of America, North America

Padlocks to bring luck in love, the monastery complex of Wudai Shan (Mount Wutai), UNESCO World Heritage Site, Shanxi, China, Asia

The welcome sign for Desert View Point on the east side of Grand Canyon South Rim, UNESCO World Heritage Site, Arizona, United States of America, North America

Stairs going down from the fourth floor in the historic Desert View Watchtower at Grand Canyon South Rim, UNESCO World Heritage Site, Arizona, United States of America, North America

Downward view from the second floor in historic Desert View Watchtower at Grand Canyon South Rim, artwork created by Fred Kobotie in 1933, now owned by the National Park Service, UNESCO World Heritage Site, Arizona, United States of America, North America

Stairs up to the third floor in the historic Desert View Watchtower at Grand Canyon South Rim, artwork created by Fred Kobotie in 1933, now owned by the National Park Service, UNESCO World Heritage Site, Arizona, United States of America, North America

The top floor of the historic Watchtower at Grand Canyon South Rim, Grand Canyon, UNESCO World Heritage Site, Arizona, United States of America, North America

The upper half of the Desert View Watchtower viewed from the observation deck at Grand Canyon South Rim, UNESCO World Heritage Site, Arizona, United States of America, North America

View from the observation deck of the Desert View Watchtower at Grand Canyon South Rim, UNESCO World Heritage Site, Arizona, United States of America, North America

Steps to a platform above the observation deck of the Desert View Watchtower at Grand Canyon South Rim, HDR enhanced, Arizona, United States of America, North America

North view of Grand Canyon South Rim Arizona from the top floor of the historic Watchtower, taken through glass window, Grand Canyon, UNESCO World Heritage Site, Arizona, United States of America, North America

View of tavervas and I Love Thassos sign in the port of Thassos Town, Thassos, Aegean Sea, Greek Islands, Greece, Europe

Cliff views just south of Naji Point on the North Rim of Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America

Aerial view of rock formations in Love Valley at sunrise, Goreme, Goreme Historical National Park, UNESCO World Heritage Site, Cappadocia, Central Anatolia Region, Anatolia, Turkey, Asia Minor, Asia

Aerial view of hot air balloon over rock formations in Love Valley at sunrise, Goreme, Goreme Historical National Park, UNESCO World Heritage Site, Cappadocia, Central Anatolia Region, Anatolia, Turkey, Asia Minor, Asia

View of the Grand Canyon west of Navajo Point with a storm rolling in from the west, Arizona, United States of America, North America

The Little Teepees on the north side of Haystack Mesa in Petrified Forest National Park, Arizona, United States of America, North America

A shallow cave carved out of a cliff wall below the Blue Mesa in Petrified Forest National Park, Arizona, United States of America, North America

Hoodoo filled cliffs on the north side of Blue Mesa in Petrified Forest National Park, Arizona, United States of America, North America

Vioareioi Church and the sun aligned with bell tower, Faroe Islands, Denmark, North Atlantic, Europe

Goblin Garden west of Hamilili Point in Petrified Forest National Park, Arizona, United States of America, North America

Goblin Garden west of Hamilili Point in Petrified Forest National Park, Arizona, United States of America, North America

Gray clay flats below Anvil Hill west of Hamilili Point in Petrified Forest National Park, Arizona, United States of America, North America

A sloping red sand dune above Hamilili Wash in Petrified Forest National Park, Arizona, United States of America, North America

A meadow in Fuller Canyon off Cape Royal Road at Grand Canyon North Rim, Arizona, United States of America

Highway US89A looking east to Vermilion Cliffs National Monument with Kaibab National Forest boundary sign, Arizona, United States of America

The west entrance of Supai Tunnel on North Kaibab Trail, Grand Canyon North Rim, UNESCO, Arizona, United States of America

Looking back up the first leg of the North Kaibab Trail at Grand Canyon North Rim, UNESCO, Arizona, United States of America

The 7th switchback along the North Kaibab Trail at Grand Canyon North Rim, UNESCO, Arizona, United States of America

The 12th switchback along the North Kaibab Trail at Grand Canyon North Rim, UNESCO, Arizona, United States of America

The 17th switchback along the North Kaibab Trail at Grand Canyon North Rim, UNESCO, Arizona, United States of America

The boundary fence on the east side of Petrified Forest National Park, Arizona, United States of America