Boardwalk, Salt Marsh, Sandwich, Cape Cod, Massachusetts, New England, United States of America, North America

Salt Marsh, Sandwich, Cape Cod, Massachusetts, New England, United States of America, North America

Town Neck Beach, Cape Cod Bay, Sandwich, Cape Cod, Massachusetts, New England, United States of America, North America

The dunes and lagoon of Sandwich Harbour, just south of Walvis Bay and within the Namib Naukluft Park, Namibia, Africa

Antarctic fur seals (Arctocephalus gazella) and a huge Chinstrap penguin colony (Pygoscelis antarctica) on a black volcanic beach, Saunders Island, South Sandwich Islands, Antarctica, Polar Regions

Southern rockhopper penguin group (Eudyptes chrysocome), Saunders Island, South Sandwich Islands, Antarctica, Polar Regions

Sandwich Boardwalk, Salt Marsh, Sandwich, Cape Cod, Massachusetts, New England, United States of America, North America

Ham and cheese bread rolls for sale at the Mercat de Sant Josep de la Boqueria, Barcelona's most famous market, Barcelona, Catalonia, Spain, Europe

Savoury snacks for sale at the Mercat de Sant Josep de la Boqueria, Barcelona's most famous market, Barcelona, Catalonia, Spain, Europe

Chinstrap penguin group (Pygoscelis antarctica), Saunders island, South Sandwich Islands, Antarctica, Polar Regions

Salt Marsh, Sandwich, Cape Cod, Massachusetts, New England, United States of America, North America

The lagoon at Sandwich Harbour, just south of Walvis Bay and within the Namib Naukluft Park, Namibia, Africa

Dexter's Grist Mill, built in 1654 restored 1961, Sandwich, Cape Cod, Massachusetts, USA

Sandwiches on French bread, Nha Trang, Vietnam, Indochina, Southeast Asia, Asia

Southern rockhopper penguin group (Eudyptes chrysocome), Saunders Island, South Sandwich Islands, Antarctica, Polar Regions

Weston-super-Mare, Somerset, England, United Kingdom, Europe

Penguins, Saunders Island, South Sandwich Islands, Antarctica, Polar Regions

Drone shot of car in Sandwich Harbour, Namibia, Africa

Town Neck Beach, Cape Cod Bay, Sandwich, Cape Cod, Massachusetts, New England, United States of America, North America

Tourists watching Humpback whales (Megaptera novaeangliae), South Sandwich islands, Antarctica

Chinstrap penguin colony (Pygoscelis antarctica), Saunders Island, South Sandwich Islands, Antarctica, Polar Regions

Open sandwiches served at restaurant Langhoff and Juul, Guldsmedgade 30, Latin Quarter, Aarhus, Jutland Peninsula, Denmark, Europe

Ham and cheese baguette at a cafe in Paris, France

Big sandwich on wooden table in the mountains, France

Sandwich Terns (Sterna sandivicensis), in their breeding colony in June, on Brownsea Island, a nature reserve in Poole Harbour, Dorset, England, United Kingdom, Europe

Sandwich Terns (Sterna sandivicensis), in their breeding colony in June, on Brownsea Island, a nature reserve in Poole Harbour, Dorset, England, United Kingdom, Europe

Robot Sandwich delivery

Swimming chinstrap penguin (Pygoscelis antarcticus), South Sandwich Islands, Polar Regions

Snow petrel (Pagodroma nivea) in flight against a dark blue sea, South Georgia and South Sandwich Islands, Polar Regions

Sandwich Harbour Dunes, Namibia, Africa

A multi-ethnic couple breakfasting together and looking out over Sugar Loaf mountain and the Rio skyline, Rio de Janeiro, Brazil, South America

A multi-ethnic couple breakfasting and taking a mobile phone photo of Sugar Loaf and the Rio skyline, Rio de Janeiro, Brazil, South America

A view of Lucifer Hill on Candlemas Island, an uninhabited volcanic Island in the South Sandwich Islands, South Atlantic, Polar Regions

A view of Leskov Island, a volcanic island in the South Sandwich Islands, South Atlantic, Polar Regions

Banh Mi sandwich, close-up of traditional Vietnamese baguette filled with pate, meat and vegetables, Ho Chi Minh City, Vietnam

Whaleboat Louise wreck, former Grytviken whaling station, King Edward Cove, South Georgia and the Sandwich Islands, Antarctica, Polar Regions

Snow-covered hills of Bristol Island, South Sandwich Islands, Polar Regions

A view of Candlemas Island, an uninhabited volcanic Island in the South Sandwich Islands, South Atlantic, Polar Regions

View of shops and architecture on bustling Via Benedetto Croce, Naples, Campania, Italy, Europe

Artisan bread sandwich served at High Street on Market restaurant, 308 Market Street, Philadelphia, Commonwealth of Pennsylvania, United States of America, North America

Aerial photo of Sandwich Harbour on the coast, Namibia, Africa

Artisan bread sandwich served at High Street on Market restaurant, 308 Market Street, Philadelphia, Commonwealth of Pennsylvania, United States of America, North America

Porpoising chinstrap penguin (Pygoscelis antarcticus), South Sandwich Islands, Polar Regions

Sandwich Harbour Dunes, Namibia, Africa

Tapas appetizers, Spanish cuisine, served on a dish, Spain, Europe

Undine Harbour, South Georgia, South Georgia and the Sandwich Islands, Antarctica, Polar Regions

Former Grytviken whaling station under snow, King Edward Cove, South Georgia, South Georgia and the Sandwich Islands, Antarctica, Polar Regions

Ice covered Cook Island, a volcanic island in the South Sandwich Islands, South Atlantic, Polar Regions

Chinstrap penguins (Pygoscelis antarcticus), diving off a cliff in to the sea, Zavodovski Island, South Sandwich Islands, South Atlantic, Polar Regions

Penguins marching along a glacier face on Saunders Island, South Sandwich Islands, South Atlantic, Polar Regions

Former Grytviken whaling station, King Edward Cove, South Georgia, South Georgia and the Sandwich Islands, Antarctica, Polar Regions

Cooper Bay, Floating Icebergs, South Georgia, South Georgia and the Sandwich Islands, Antarctica, Polar Regions

Over a million chinstrap penguins (Pygoscelis antarcticus), on Zavodovski Island, South Sandwich Islands, South Atlantic, Polar Regions

Over a million chinstrap penguins (Pygoscelis antarcticus), on Zavodovski Island, South Sandwich Islands, South Atlantic, Polar Regions

Adult Adelie penguins (Pygoscelis adeliae), walking along a glacier, Thule Island, South Sandwich Islands, South Atlantic, Polar Regions

Chinstrap penguins (Pygoscelis antarcticus), and Adelie penguins on Saunders Island, South Sandwich Islands, South Atlantic, Polar Regions

Chinstrap penguins (Pygoscelis antarcticus), diving off a cliff in to the sea, Zavodovski Island, South Sandwich Islands, South Atlantic, Polar Regions

Norwegian style Whalers Church, former Grytviken whaling station, South Georgia and the Sandwich Islands, Antarctica, Polar Regions

Whaleboat wreck, former Grytviken whaling station, King Edward Cove, South Georgia and the Sandwich Islands, Antarctica, Polar Regions

Iceberg with penguins against a blue sky, South Sandwich Islands, Polar Regions

Saunders Island with steam rising from the lava lake, South Sandwich Islands, Polar Regions

Model within Sandwich Harbour, Skeleton Coast, Namibia, Africa

Penguins walk across the glacier on Thule Island, a volcanic island in the South Sandwich Islands, South Atlantic, Polar Regions

An avalanche of falling ice on Thule Island, a volcanic island in the South Sandwich Islands, South Atlantic, Polar Regions

Male Southern Elephant Seal (Mirounga leonina), Fortuna Bay, South Georgia, South Georgia and the Sandwich Islands, Antarctica, Polar Regions

Iceberg with small number of penguins just off the coast of Bristol Island, South Sandwich Islands, Polar Regions

Adult Adelie penguins (Pygoscelis adeliae), walking along a glacier, Thule Island, South Sandwich Islands, South Atlantic, Polar Regions

Over a million chinstrap penguins (Pygoscelis antarcticus), on Zavodovski Island, South Sandwich Islands, South Atlantic, Polar Regions

An avalanche of falling ice on Thule Island, a volcanic island in the South Sandwich Islands, South Atlantic, Polar Regions

Antarctic prion (Pachyptila desolata) in flight against a dark blue sea, South Georgia and South Sandwich Islands, Polar Regions

Drygalski Fjord, Floating Icebergs, South Georgia, South Georgia and the Sandwich Islands, Antarctica, Polar Regions

Drygalski Fjord, Glacier and moraine, South Georgia, South Georgia and the Sandwich Islands, Antarctica, Polar Regions

Adelie penguins (Pygoscelis adeliae), marching along a glacier on Saunders Island, South Sandwich Islands, South Atlantic, Polar Regions

Gentoo penguins (Pygoscelis papua) on a floating iceberg, Drygalski Fjord, South Georgia and the Sandwich Islands, Antarctica, Polar Regions

Ice covered mountains on Thule Island, a volcanic island in the South Sandwich Islands, South Atlantic, Polar Regions

Female northern giant petrel (Macronectes halli), ringed on South Georgia and photographed years later off Bristol Island, South Sandwich Islands, Polar Regions

Adult Adelie penguins (Pygoscelis adeliae), walking along a glacier, Thule Island, South Sandwich Islands, South Atlantic, Polar Regions

Over a million chinstrap penguins (Pygoscelis antarcticus), on Zavodovski Island, South Sandwich Islands, South Atlantic, Polar Regions

Cooper Bay, Floating Icebergs, South Georgia, South Georgia and the Sandwich Islands, Antarctica, Polar Regions

Close-up of a flying Cape petrel (Daption capense), South Georgia and the South Sandwich Islands, Polar Regions

Sand dunes, blown by wind into pronounced furrows stretching into the distance by the sea and surf, near Sandwich Bay, Namibia, Africa

High sand dunes of the Namib Desert meet the ocean, Sandwich Harbour, Namibia, Africa

Adult Adelie penguins (Pygoscelis adeliae), swimming for the shoreline, Thule Island, South Sandwich Islands, South Atlantic, Polar Regions

Two Type A orcas (Orcinus orca) surfacing together in the Southern Ocean, South Sandwich Islands, Polar Regions

Iceberg with penguins against a blue sky, South Sandwich Islands, Polar Regions

Cooper Bay, Floating Icebergs, South Georgia, South Georgia and the Sandwich Islands, Antarctica, Polar Regions

Light-mantled albatross (Phoebetria palpebrata) in flight, gliding over the sea surface, South Sandwich Islands, Polar Regions

Humpback whale (Megaptera novaeangliae), South Sandwich Islands, Antarctica, Polar Regions

Chinstrap penguin chick (Pygoscelis antarctica) on a black volcanic beach, Saunders Island, South Sandwich Islands, Antarctica, Polar Regions

Snow covered mountains on South Georgia West coast, South Georgia and the Sandwich Islands, Antarctica, Polar Regions

Snow covered mountains, Prion Island, South Georgia, South Georgia and the Sandwich Islands, Antarctica, Polar Regions

View of food and drink in Piazza Cavour in Rimini, Rimini, Emilia-Romagna, Italy, Europe

Drygalski Fjord, Floating Icebergs, South Georgia, South Georgia and the Sandwich Islands, Antarctica, Polar Regions

Humpback whale (Megaptera novaeangliae), South Sandwich Islands, Antarctica, Polar Regions

Humpback whale (Megaptera novaeangliae), South Sandwich Islands, Antarctica, Polar Regions

Adult Adelie penguins (Pygoscelis adeliae), walking along a glacier, Thule Island, South Sandwich Islands, South Atlantic, Polar Regions

Humpback whale (Megaptera novaeangliae), South Sandwich islands, Antarctica

King Haakon Bay, snow covered mountains and glaciers, South Georgia, South Georgia and the Sandwich Islands, Antarctica, Polar Regions

Woman street vendor selling French bread sandwiches from her stall on the pavement in Nhatrang, Vietnam, Indochina, Southeast Asia, Asia

Young office workers eat sandwiches in Place Clemenceau during lunch break in Pau, the Pyrenees, France