Tourists in Todra Gorge, High Atlas Mountains, Morocco, North Africa, Africa

High Line Park, elevated public park on former rail tracks, Manhattan, New York City, United States of America, North America

Skipton High Street and Library, Skipton, North Yorkshire, Yorkshire, England, United Kingdom, Europe

Central clock tower and tourism office on High Street, Rotorua, North Island, New Zealand, Pacific

Temple at Philae, moved when the Aswan High Dam was built, near Aswan, Nubia, Egypt, North Africa, Africa

Temple of Re-Herakhte for pharaoh Ramses II, moved when Aswan High Dam built, UNESCO World Heritage Site, Abu Simbel, Nubia, Egypt, North Africa, Africa

Yachts at high tide in Padstow harbour, Padstow, North Cornwall, England, United Kingdom, Europe

High Line Park, elevated public park on former rail tracks, Manhattan, New York City, United States of America, North America

High Line Park, elevated public park on former rail tracks, Manhattan, New York City, United States of America, North America

High Line Park, elevated public park on former rail tracks, Manhattan, New York City, United States of America, North America

Temple of Hathor in honour of Nefretare, moved when Aswan High Dam built, Abu Simbel, UNESCO Heritage Site, Nubia, Egypt, North Africa, Africa

Aswan High Dam, Aswan, Egypt, North Africa, Africa

Hidden Lake, near Logan Pass, Glacier National Park, High Rocky Mountains, Montana, United States of America, North America

High Line Park, elevated public park on former rail tracks, Manhattan, New York City, United States of America, North America

High Line Park, Manhattan, New York City, New York, United States of America, North America

High level view over sand dunes, with black tents, near Tamegroute, Morocco, North Africa, Africa

High angle view of oasis, Dades Valley, Morocco, North Africa, Africa

Small fishing boats in the harbour at high tide, Newquay, North Cornwall, England, United Kingdom, Europe

High Line Park, elevated public park on former rail tracks, Manhattan, New York City, United States of America, North America

High Line Park, elevated public park on former rail tracks, Manhattan, New York City, United States of America, North America

High Museum of Art, Atlanta, Georgia, United States of America, North America

High Line Park, Manhattan, New York City, New York, United States of America, North America

The Huka Falls, known as Hukanui (great body of spray) in Maori, 10m high, 62000 gallons of water per second at peak times, Waikato River, South Auckland, North Island, New Zealand, Pacific

High Line Park, elevated public park on former rail tracks, Manhattan, New York City, United States of America, North America

High Line public park, Meatpacking District, New York City, New York, United States of America, North America

High angle view of Chicago River and Lake Michigan, Chicago, Illinois, United States of America, North America

High Line public park, Meatpacking District, New York City, New York, United States of America, North America

High Line Park, elevated public park on former rail tracks, Manhattan, New York City, United States of America, North America

High Line public park, Meatpacking District, New York City, New York, United States of America, North America

High Line public park, Meatpacking District, New York City, New York, United States of America, North America

Colourful village houses in the High Atlas Mountains, Morocco, North Africa, Africa

Myanmar bride groom cutting cake, catholic wedding of tribal kachins at myitkyina, a largely kachin community in north burma near chinese border

Totem pole on Jasper high street, Jasper National Park, UNESCO World Heritage Site, Canadian Rockies, Canada, North America

The 30m high Henty Dunes, sand blown inland from Ocean Beach, north of Strahan, West Coast, Tasmania, Australia, Pacific

Humpback whale (Megaptera novaeangliae) adult breaching high in the air, Monterey, California, United States of America, North America

Totem pole on Jasper high street, Jasper National Park, UNESCO World Heritage Site, Canadian Rockies, Canada, North America

Humpback whale (Megaptera novaeangliae) adult breaching high in the air, Monterey, California, United States of America, North America

Humpback whale (Megaptera novaeangliae) adult breaching high in the air, Monterey, California, United States of America, North America

A Berber flock of sheep and goats in a high valley in the Anti Atlas mountains of Morocco, North Africa, Africa

Totem pole on Jasper high street, Jasper National Park, UNESCO World Heritage Site, Canadian Rockies, Canada, North America

Totem pole on Jasper high street, Jasper National Park, UNESCO World Heritage Site, Canadian Rockies, Canada, North America

High grazing land above a Berber village in the Anti Atlas mountains of Morocco, North Africa, Africa

High Scaler sculpture, Hoover Dam, Nevada, United States of America, North America

The Willis Tower, 110 storeys high, formerly the Sears Tower, Chicago, Illinois, United States of America, North America

Totem pole on Jasper high street, Jasper National Park, UNESCO World Heritage Site, Canadian Rockies, Canada, North America

Avalanche protection for the high voltage power cables as they exit the underground Fljotsdalur hydro power station part of Karahnjukar a massive new controversial hydro electricity project in North East Iceland, Polar Regions

High powered tractor "Chain Reaction" competing in a tractor pull competition to drag a weighted sledge as far as possible, North Somerset Show, UK.

Short-beaked common dolphin (Delphinus delphis) leaping (totally airborn!) off the north shore of Catalina Island, Southern California, USA. Pacific Ocean.

Enteromorpha (Enteromorpha intestinalis),one of the mmost common green seaweeds to be found in shallow rockpools which copes with high temperatures and changes in salinity, Eyemouth, Scotland, UK North Sea

Sperm Whale Throws fluke high into the air water flying off the edges. Azores, North Atlantic

Bleached soft coral, Sinularia sp. This colony has lost its symbiotic zooxanthellae and turned white due to high water temperatures. Buyat Bay, North Sulawesi, Indonesia, Pacific Ocean.

Polar bear (Ursus maritimus) and tourists aboard eco-tourism ship. Spitzbergen, Polar High Arctic, North Atlantic.

Soft leather coral, Sarcophyton sp., bleaching. This soft coral has lost its symbiotic algae, zooxanthellae, and turned white due to high water temperatures. Buyat Bay, North Sulawesi, Indonesia, Pacific Ocean.

Polar Bear (Ursus maritimus). Wild, large adult male with radio tracking collar. Spitzbergen, Polar high Arctic, North Atlantic.

Coral polyps bleaching, Favia sp. Bleaching occurs when corals stress under high water temperatures and expel their symbiotic zooxanthellae. The coral will starve to death if it does not reacquire zooxanthellae. Buyat Bay, North Sulawesi, Indonesia, Pacific Ocean.

Walrus (Odobenus rosmarus rosmrus). Spitzbergen, Polar High Arctic, North Atlantic.

Head of dead Polar Bear (Ursus maritimus). Died of natural causes. Spitzbergen, Polar High Arctic, North Atlantic.

Polar bear (Ursus maritimus) large adult male on snow ice pack. Spitzbergen, Polar High Arctic, North Atlantic.

Two Polar Bears (Ursus maritimus) getting ready for swimming in the sea . Northwest of Nordaustlandet, Svalbard Archipelago, High Norwegian Arctic

Meet up of two Polar Bears (Ursus maritimus) the weaker one has to give way. Northwest of Nordaustlandet, Svalbard Archipelago, High Norwegian Arctic

Short-beaked common dolphin (Delphinus delphis) leaping (totally airborn!) off the north shore of Catalina Island, Southern California, USA. Pacific Ocean. Restricted Resolution (Please contact us)

Polar bear (Ursus maritimus) female with two first-ear cubs on pack ice. Spitzbergen, Polar High Arctic, North Atlantic.

Two Polar Bears (Ursus maritimus) approaching while swimming amongst melting ice floes. Northwest of Nordaustlandet, Svalbard Archipelago, High Norwegian Arctic

An Teallach from Ben Mhor Coigach across Loch Broom in the North West Highlands of Scotland, United Kingdom, Europe

Output from the turbines, the main high voltage electric cables from the underground plant to pylons outside, Fljotsdalur hydro power station, part of Karahnjukar a massive new contorversial hydro electricity project in North East Iceland, Polar Regions

Enteromorpha (Enteromorpha intestinalis),one of the mmost common green seaweeds to be found in shallow rockpools which copes with high temperatures and changes in salinity, Eyemouth, Scotland, UK North Sea

Polar bear (Ursus maritimus) rolling on snow ice pack. Spitzbergen, Polar High Arctic, North Atlantic.

Two Polar Bears (Ursus maritimus) approaching while swimming amongst melting ice floes. Northwest of Nordaustlandet, Svalbard Archipelago, High Norwegian Arctic

A Polar Bear (Ursus maritimus) shaking its fur after climbing out of the water . Northwest of Nordaustlandet, Svalbard Archipelago, High Norwegian Arctic

Female Polar Bear (Ursus maritimus) with her tired cup who is lying behind on the ice. Northwest of Nordaustlandet, Svalbard Archipelago, High Norwegian Arctic

Sand Mason Worm (Lanice conchilega), typical structure of tiny hairs covered in grains of sand only 3cm high, Burnmouth, Scotland, UK North Sea

Polar Bear (Ursus maritimus) rolling on the snow for cleaning its fur. Northwest of Nordaustlandet, Svalbard Archipelago, High Norwegian Arctic

A well fed Polar Bear (Ursus maritimus) standing on melting pack ice, looking curiously, in the background a mountain silhouette . Northwest of Nordaustlandet, Svalbard Archipelago, High Norwegian Arctic

Views of Austfonna, an ice cap located on Nordaustlandet in the Svalbard archipelago, Norway

High voltage power cables exiting the underground plant towards pylons outside, Fljotsdalur hydro power station, part of Karahnjukar a massive new contorversial hydro electricity project in North East Iceland, Polar Regions

Enteromorpha (Enteromorpha intestinalis),one of the mmost common green seaweeds to be found in shallow rockpools which copes with high temperatures and changes in salinity, Eyemouth, Scotland, UK North Sea

Views of Austfonna, an ice cap located on Nordaustlandet in the Svalbard archipelago, Norway

Short-beaked common dolphin (Delphinus delphis) leaping (totally airborn!) off the north shore of Catalina Island, Southern California, USA. Pacific Ocean.

Short-beaked common dolphin (Delphinus delphis) leaping (totally airborn!) off the north shore of Catalina Island, Southern California, USA. Pacific Ocean.

Enteromorpha (Enteromorpha intestinalis),one of the mmost common green seaweeds to be found in shallow rockpools which copes with high temperatures and changes in salinity, Eyemouth, Scotland, UK North Sea

Polar Bear (Ursus maritimus) getting up and stretching his legs. Nordenskiàldbukta, North of Nordaustlandet, Svalbard Archipelago, High Norwegian Arctic

Short-beaked common dolphin (Delphinus delphis) leaping off the north shore of Catalina Island, Southern California, USA. Pacific Ocean.

Views of Austfonna, an ice cap located on Nordaustlandet in the Svalbard archipelago, Norway

A Polar Bear (Ursus maritimus) gets followed by another bear . Northwest of Nordaustlandet, Svalbard Archipelago, High Norwegian Arctic

Two Polar Bears (Ursus maritimus) sniffing each other during a close meet up on an ice floe. Northwest of Nordaustlandet, Svalbard Archipelago, High Norwegian Arctic

Polar Bear (Ursus maritimus) standing on a huge pack ice field, in the background a mountain silhouette . Nordenskiàldbukta, North of Nordaustlandet, Svalbard Archipelago, High Norwegian Arctic

Polar bear (Ursus maritimus) walking on drift ice and looking towards camera. North of Nordaustlandet, Svalbard Archipelago, High Norwegian Arctic.

Female Polar Bear (Ursus maritimus) with her one year old cup who want to play . Southeast of Nordaustlandet, Svalbard Archipelago, High Norwegian Arctic

Two Polar Bears (Ursus maritimus) approaching while swimming amongst melting ice floes. Northwest of Nordaustlandet, Svalbard Archipelago, High Norwegian Arctic

Views of Austfonna, an ice cap located on Nordaustlandet in the Svalbard archipelago, Norway

An adult ivory gull (Pagophila eburnea) near Monaco Glacier on the north side of Spitsbergen in the Svalbard Archipelago in the Barents Sea, Norway

Polar bear (Ursus maritimus) walking on drift ice with its mirror on a meltwater pond. North of Nordaustlandet, Svalbard Archipelago, High Norwegian Arctic.

Two Polar Bears (Ursus maritimus) looking with a curious and friendly gesture from a melting ice floe. Northwest of Nordaustlandet, Svalbard Archipelago, High Norwegian Arctic

Open leads surrounded by multi-year ice floes in the Barents Sea between Edge¯ya (Edge Island) and Kong Karls Land in the Svalbard Archipelago, Norway.

Smiling Black baby girl eating cereal from bowl in high chair

Black woman watching baby daughter eat cereal in high chair

High angle view of golf ball in hole

High angle view of disabled woman stretching legs in park

High angle view of salad, meat, cucumbers and salad on table

Aerial views of El Castillo and the Ruins of the Mayan temple grounds at Tulum, Quintana Roo, Yucatan, Mexico. Tulum is the site of a pre-Columbian Mayan walled city which served as a major port for Coba, in the Mexican state of Quintana Roo. The ruins are situated on 12 meter 39 ft tall cliffs along the east coast of the Yucatán Peninsula on the Caribbean Sea in the state of Quintana Roo, Mexico. Tulum was one of the last cities built and inhabited by the Maya; it was at its height between the 13th and 15th centuries and managed to survive about 70 years after the Spanish began occupying Mexico. Old World diseases brought by the Spanish settlers appear to have resulted in very high fatalities, disrupting the society, and eventually causing the city to be abandoned.